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jowsy / bim-net-interactive

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warning CS8021: No value for RuntimeMetadataVersion found #11

Open jcunniff23 opened 1 month ago

jcunniff23 commented 1 month ago

Describe the bug When trying to run any query against the Revit variables, like when following the GetStarted.ipynb file, the following errors occur

To Reproduce Steps to reproduce the behavior:

  1. Follow the cells on GetStarted.ipynb
  2. See error

Desktop (please complete the following information):

Error: warning CS8021: No value for RuntimeMetadataVersion found. No assembly containing System.Object was found nor was a value for RuntimeMetadataVersion specified through options. (8,14): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) (17,18): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0246: The type or namespace name 'EventHandler<>' could not be found (are you missing a using directive or an assembly reference?) (19,35): error CS0518: Predefined type 'System.Object' is not defined or imported (21,41): error CS0518: Predefined type 'System.Object' is not defined or imported (21,62): error CS0518: Predefined type 'System.Object' is not defined or imported (21,17): error CS0518: Predefined type 'System.String' is not defined or imported (21,25): error CS0518: Predefined type 'System.Object' is not defined or imported (21,16): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (28,29): error CS0518: Predefined type 'System.Object' is not defined or imported (28,16): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type '(, )' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type 'EventHandler<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (19,53): error CS0656: Missing compiler required member 'System.Delegate.Combine' (19,53): error CS0656: Missing compiler required member 'System.Delegate.Remove' (22,10): error CS0518: Predefined type 'System.Object' is not defined or imported (22,83): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,83): error CS0518: Predefined type 'System.Object' is not defined or imported (22,71): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,98): error CS0518: Predefined type 'System.String' is not defined or imported (22,44): error CS0518: Predefined type 'System.Object' is not defined or imported (22,43): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,121): error CS0518: Predefined type 'System.Object' is not defined or imported (22,121): error CS0518: Predefined type 'System.Void' is not defined or imported (22,151): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,151): error CS0518: Predefined type 'System.Object' is not defined or imported (22,166): error CS0518: Predefined type 'System.Object' is not defined or imported (22,159): error CS0518: Predefined type 'System.Type' is not defined or imported (22,117): error CS0012: The type 'Type' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (23,56): error CS0518: Predefined type 'System.Object' is not defined or imported (23,51): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (23,51): error CS0518: Predefined type 'System.Object' is not defined or imported (25,1): error CS0518: Predefined type 'System.Object' is not defined or imported (26,8): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (30,41): error CS0518: Predefined type 'System.Object' is not defined or imported (30,41): error CS0518: Predefined type 'System.Void' is not defined or imported (17,18): error CS1729: 'object' does not contain a constructor that takes 0 arguments error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Int32' is not defined or imported error CS0656: Missing compiler required member 'System.AttributeUsageAttribute..ctor' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.AllowMultiple' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.Inherited'
jowsy commented 4 weeks ago

I've corrected an error in the notebook. Could you try again if the issue has been resolved?

jcunniff23 commented 4 weeks ago

I cloned a fresh version and tried again. Here is the full output for each cell:

Error: Determining projects to restore... Restored [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\install\Installer.csproj](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/install/Installer.csproj) (in 324 ms). Restored [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/Jowsy.CSharp.csproj) (in 391 ms). Restored [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/Jowsy.DotNet.Interactive.Extensions.csproj) (in 391 ms). Restored [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/Jowsy.CSharp.Tests.csproj) (in 418 ms). Restored [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Jowsy.Revit.KernelAddin.csproj) (in 573 ms). Installer -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\install\bin\Debug\Installer.exe](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/install/bin/Debug/Installer.exe) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(18,16): warning CS8618: Non-nullable property 'GeneratedClassCode' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(64,35): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(70,32): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(86,47): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(111,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(136,50): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(147,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(152,33): warning CS8604: Possible null reference argument for parameter 'source' in 'IEnumerable Enumerable.Where(IEnumerable source, Func predicate)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(124,55): warning CS8604: Possible null reference argument for parameter 'root' in 'SyntaxTree CSharpSyntaxTree.Create(CSharpSyntaxNode root, CSharpParseOptions? options = null, string? path = "", Encoding? encoding = null)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(139,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(140,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(141,37): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(149,47): warning CS8604: Possible null reference argument for parameter 'path' in 'DirectoryInfo Directory.CreateDirectory(string path)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(153,58): warning CS8604: Possible null reference argument for parameter 'path' in 'FileStream.FileStream(string path, FileMode mode)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(160,48): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(194,42): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] Jowsy.CSharp -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\bin\Debug\net8.0\Jowsy.CSharp.dll](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/bin/Debug/net8.0/Jowsy.CSharp.dll) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\UI\ViewModel.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/UI/ViewModel.cs)(95,27): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\RevitKernelExternalEventHandler.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/RevitKernelExternalEventHandler.cs)(76,30): warning CS0168: The variable 'ex' is declared but never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\ScriptSample.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/ScriptSample.cs)(8,53): warning CS0067: The event 'ScriptSample.OnDisplay' is never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\TestBase.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/TestBase.cs)(16,20): warning CS8603: Possible null reference return. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\TestBase.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/TestBase.cs)(9,31): warning CS8618: Non-nullable field '_references' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\CodeRewriterTests.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/CodeRewriterTests.cs)(62,38): warning CS8604: Possible null reference argument for parameter 'code' in 'string CodeRewriterTests.StripUsings(string code)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\CodeRewriterTests.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/CodeRewriterTests.cs)(104,38): warning CS8604: Possible null reference argument for parameter 'code' in 'string CodeRewriterTests.StripUsings(string code)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\ConnectRevitKernelCommand.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/ConnectRevitKernelCommand.cs)(55,88): warning CS8603: Possible null reference return. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\NamedPipeKernelConnector.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/NamedPipeKernelConnector.cs)(45,42): warning CA1416: This call site is reachable on all platforms. 'PipeTransmissionMode.Message' is supported on: 'windows'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] Jowsy.DotNet.Interactive.Extensions -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug\net8.0\Jowsy.DotNet.Interactive.Extensions.dll](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/bin/Debug/net8.0/Jowsy.DotNet.Interactive.Extensions.dll) Jowsy.CSharp.Tests -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\bin\Debug\net8.0\Jowsy.CSharp.Tests.dll](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/bin/Debug/net8.0/Jowsy.CSharp.Tests.dll) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\RevitKernelExternalEventHandler.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/RevitKernelExternalEventHandler.cs)(76,30): warning CS0168: The variable 'ex' is declared but never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\UI\ViewModel.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/UI/ViewModel.cs)(95,27): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\ScriptSample.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/ScriptSample.cs)(8,53): warning CS0067: The event 'ScriptSample.OnDisplay' is never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] Jowsy.Revit.KernelAddin -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\bin\Debug](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/bin/Debug) R24\Jowsy.Revit.KernelAddin.dll [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5100: The assembly 'interactive-extensions\dotnet\Jowsy.DotNet.Interactive.Extensions.dll' is not inside the 'lib' folder and hence it won't be added as a reference when the package is installed into a project. Move it into the 'lib' folder if it needs to be referenced. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.csharp [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.formatting [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] Successfully created package 'C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug\RevitInteractive.0.1.0.nupkg'. Copy files to Addin folder Build succeeded. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(18,16): warning CS8618: Non-nullable property 'GeneratedClassCode' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(64,35): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(70,32): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(86,47): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(111,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(136,50): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(147,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(152,33): warning CS8604: Possible null reference argument for parameter 'source' in 'IEnumerable Enumerable.Where(IEnumerable source, Func predicate)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(124,55): warning CS8604: Possible null reference argument for parameter 'root' in 'SyntaxTree CSharpSyntaxTree.Create(CSharpSyntaxNode root, CSharpParseOptions? options = null, string? path = "", Encoding? encoding = null)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(139,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(140,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(141,37): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(149,47): warning CS8604: Possible null reference argument for parameter 'path' in 'DirectoryInfo Directory.CreateDirectory(string path)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(153,58): warning CS8604: Possible null reference argument for parameter 'path' in 'FileStream.FileStream(string path, FileMode mode)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(160,48): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(194,42): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\UI\ViewModel.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/UI/ViewModel.cs)(95,27): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\RevitKernelExternalEventHandler.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/RevitKernelExternalEventHandler.cs)(76,30): warning CS0168: The variable 'ex' is declared but never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\ScriptSample.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/ScriptSample.cs)(8,53): warning CS0067: The event 'ScriptSample.OnDisplay' is never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin_dgnvmqex_wpftmp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\TestBase.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/TestBase.cs)(16,20): warning CS8603: Possible null reference return. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\TestBase.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/TestBase.cs)(9,31): warning CS8618: Non-nullable field '_references' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\CodeRewriterTests.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/CodeRewriterTests.cs)(62,38): warning CS8604: Possible null reference argument for parameter 'code' in 'string CodeRewriterTests.StripUsings(string code)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\CodeRewriterTests.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp.Tests/CodeRewriterTests.cs)(104,38): warning CS8604: Possible null reference argument for parameter 'code' in 'string CodeRewriterTests.StripUsings(string code)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp.Tests\Jowsy.CSharp.Tests.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\ConnectRevitKernelCommand.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/ConnectRevitKernelCommand.cs)(55,88): warning CS8603: Possible null reference return. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\NamedPipeKernelConnector.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/NamedPipeKernelConnector.cs)(45,42): warning CA1416: This call site is reachable on all platforms. 'PipeTransmissionMode.Message' is supported on: 'windows'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\RevitKernelExternalEventHandler.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/RevitKernelExternalEventHandler.cs)(76,30): warning CS0168: The variable 'ex' is declared but never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\UI\ViewModel.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/UI/ViewModel.cs)(95,27): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Core\ScriptSample.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.Revit.KernelAddin/Core/ScriptSample.cs)(8,53): warning CS0067: The event 'ScriptSample.OnDisplay' is never used [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.Revit.KernelAddin\Jowsy.Revit.KernelAddin.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5100: The assembly 'interactive-extensions\dotnet\Jowsy.DotNet.Interactive.Extensions.dll' is not inside the 'lib' folder and hence it won't be added as a reference when the package is installed into a project. Move it into the 'lib' folder if it needs to be referenced. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.csharp [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.formatting [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] 32 Warning(s) 0 Error(s) Time Elapsed 00:00:43.01 Determining projects to restore... All projects are up-to-date for restore. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(18,16): warning CS8618: Non-nullable property 'GeneratedClassCode' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(64,35): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(70,32): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(86,47): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(111,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(136,50): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(147,31): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\SyntaxUtils.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/SyntaxUtils.cs)(152,33): warning CS8604: Possible null reference argument for parameter 'source' in 'IEnumerable Enumerable.Where(IEnumerable source, Func predicate)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(124,55): warning CS8604: Possible null reference argument for parameter 'root' in 'SyntaxTree CSharpSyntaxTree.Create(CSharpSyntaxNode root, CSharpParseOptions? options = null, string? path = "", Encoding? encoding = null)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(139,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(140,33): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(141,37): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(149,47): warning CS8604: Possible null reference argument for parameter 'path' in 'DirectoryInfo Directory.CreateDirectory(string path)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(153,58): warning CS8604: Possible null reference argument for parameter 'path' in 'FileStream.FileStream(string path, FileMode mode)'. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(160,48): warning CS8600: Converting null literal or possible null value to non-nullable type. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\RoslynCompilerService.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/RoslynCompilerService.cs)(194,42): warning CS8602: Dereference of a possibly null reference. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\Jowsy.CSharp.csproj] Jowsy.CSharp -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.CSharp\bin\Debug\net8.0\Jowsy.CSharp.dll](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.CSharp/bin/Debug/net8.0/Jowsy.CSharp.dll) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\ConnectRevitKernelCommand.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/ConnectRevitKernelCommand.cs)(55,88): warning CS8603: Possible null reference return. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\NamedPipeKernelConnector.cs](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/NamedPipeKernelConnector.cs)(45,42): warning CA1416: This call site is reachable on all platforms. 'PipeTransmissionMode.Message' is supported on: 'windows'. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1416) [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] Jowsy.DotNet.Interactive.Extensions -> [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug\net8.0\Jowsy.DotNet.Interactive.Extensions.dll](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/bin/Debug/net8.0/Jowsy.DotNet.Interactive.Extensions.dll) [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5100: The assembly 'interactive-extensions\dotnet\Jowsy.DotNet.Interactive.Extensions.dll' is not inside the 'lib' folder and hence it won't be added as a reference when the package is installed into a project. Move it into the 'lib' folder if it needs to be referenced. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.csharp [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] ... [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.csharp [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] [C:\Program](file:///C:/Program) Files\dotnet\sdk\8.0.403\Sdks\NuGet.Build.Tasks.Pack\build\NuGet.Build.Tasks.Pack.targets(221,5): warning NU5104: A stable release of a package should not have a prerelease dependency. Either modify the version spec of dependency "microsoft.dotnet.interactive.formatting [1.0.0-beta.23611.1, )" or update the version field in the nuspec. [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\Jowsy.DotNet.Interactive.Extensions.csproj] Successfully created package 'C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug\RevitInteractive.1.0.0.nupkg'. Output is truncated. View as a [scrollable element](command:cellOutput.enableScrolling?efeb0dad-bb74-423e-b008-0ce70418c467) or open in a [text editor](command:workbench.action.openLargeOutput?efeb0dad-bb74-423e-b008-0ce70418c467). Adjust cell output [settings](command:workbench.action.openSettings?%5B%22%40tag%3AnotebookOutputLayout%22%5D)... Error: Command failed: SubmitCode: # 1. Build the project ... [C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug](file:///C:/Users/jcunniff/Downloads/BimInteractive/bim-net-interactive/src/Jowsy.DotNet.Interactive.Extensions/bin/Debug) Restore sources C:\Users\jcunniff\Downloads\BimInteractive\bim-net-interactive\src\Jowsy.DotNet.Interactive.Extensions\bin\Debug Installed Packages RevitInteractive, 1.0.0 Loading extensions from `C:\Users\jcunniff\.nuget\packages\revitinteractive\1.0.0\interactive-extensions\dotnet\Jowsy.DotNet.Interactive.Extensions.dll` Autodesk Revit Interactive Extension Kernel added: #!revit24 warning CS8021: No value for RuntimeMetadataVersion found. No assembly containing System.Object was found nor was a value for RuntimeMetadataVersion specified through options. (8,14): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) (17,18): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0246: The type or namespace name 'EventHandler<>' could not be found (are you missing a using directive or an assembly reference?) (19,35): error CS0518: Predefined type 'System.Object' is not defined or imported (21,41): error CS0518: Predefined type 'System.Object' is not defined or imported (21,62): error CS0518: Predefined type 'System.Object' is not defined or imported (21,17): error CS0518: Predefined type 'System.String' is not defined or imported (21,25): error CS0518: Predefined type 'System.Object' is not defined or imported (21,16): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (28,29): error CS0518: Predefined type 'System.Object' is not defined or imported (28,16): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type '(, )' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type 'EventHandler<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (19,53): error CS0656: Missing compiler required member 'System.Delegate.Combine' (19,53): error CS0656: Missing compiler required member 'System.Delegate.Remove' (22,10): error CS0518: Predefined type 'System.Object' is not defined or imported (22,83): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,83): error CS0518: Predefined type 'System.Object' is not defined or imported (22,71): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,98): error CS0518: Predefined type 'System.String' is not defined or imported (22,44): error CS0518: Predefined type 'System.Object' is not defined or imported (22,43): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,121): error CS0518: Predefined type 'System.Object' is not defined or imported (22,121): error CS0518: Predefined type 'System.Void' is not defined or imported (22,151): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,151): error CS0518: Predefined type 'System.Object' is not defined or imported (22,166): error CS0518: Predefined type 'System.Object' is not defined or imported (22,159): error CS0518: Predefined type 'System.Type' is not defined or imported (22,117): error CS0012: The type 'Type' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (23,56): error CS0518: Predefined type 'System.Object' is not defined or imported (23,51): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (23,51): error CS0518: Predefined type 'System.Object' is not defined or imported (25,1): error CS0518: Predefined type 'System.Object' is not defined or imported (26,8): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (30,41): error CS0518: Predefined type 'System.Object' is not defined or imported (30,41): error CS0518: Predefined type 'System.Void' is not defined or imported (17,18): error CS1729: 'object' does not contain a constructor that takes 0 arguments error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Int32' is not defined or imported error CS0656: Missing compiler required member 'System.AttributeUsageAttribute..ctor' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.AllowMultiple' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.Inherited' Error: Command failed: SubmitCode: var query = new FilteredElementCollector(doc).OfCl ...

I also tried creating a fresh notebook using the readme file and received the following:

Error 2: warning CS8021: No value for RuntimeMetadataVersion found. No assembly containing System.Object was found nor was a value for RuntimeMetadataVersion specified through options. (8,14): error CS0234: The type or namespace name 'Linq' does not exist in the namespace 'System' (are you missing an assembly reference?) (17,18): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0518: Predefined type 'System.Object' is not defined or imported (19,22): error CS0246: The type or namespace name 'EventHandler<>' could not be found (are you missing a using directive or an assembly reference?) (19,35): error CS0518: Predefined type 'System.Object' is not defined or imported (21,41): error CS0518: Predefined type 'System.Object' is not defined or imported (21,62): error CS0518: Predefined type 'System.Object' is not defined or imported (21,17): error CS0518: Predefined type 'System.String' is not defined or imported (21,25): error CS0518: Predefined type 'System.Object' is not defined or imported (21,16): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (37,29): error CS0518: Predefined type 'System.Object' is not defined or imported (37,16): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (19,53): error CS0518: Predefined type 'System.Void' is not defined or imported (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type '(, )' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (17,28): error CS0518: Predefined type 'System.Object' is not defined or imported (17,28): error CS0012: The type 'EventHandler<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (19,53): error CS0656: Missing compiler required member 'System.Delegate.Combine' (19,53): error CS0656: Missing compiler required member 'System.Delegate.Remove' (22,10): error CS0518: Predefined type 'System.Object' is not defined or imported (22,83): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,83): error CS0518: Predefined type 'System.Object' is not defined or imported (22,71): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,98): error CS0518: Predefined type 'System.String' is not defined or imported (22,44): error CS0518: Predefined type 'System.Object' is not defined or imported (22,43): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,105): error CS0518: Predefined type 'System.Object' is not defined or imported (22,184): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,184): error CS0518: Predefined type 'System.Object' is not defined or imported (22,172): error CS0012: The type 'Dictionary<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,199): error CS0518: Predefined type 'System.String' is not defined or imported (22,143): error CS0518: Predefined type 'System.Object' is not defined or imported (22,142): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (22,228): error CS0518: Predefined type 'System.Object' is not defined or imported (22,228): error CS0518: Predefined type 'System.Void' is not defined or imported (25,10): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (25,10): error CS0518: Predefined type 'System.Object' is not defined or imported (26,10): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (26,10): error CS0518: Predefined type 'System.Object' is not defined or imported (27,10): error CS0012: The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (27,10): error CS0518: Predefined type 'System.Object' is not defined or imported (24,13): error CS0012: The type 'IList<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. (34,1): error CS0518: Predefined type 'System.Object' is not defined or imported (35,9): error CS0518: Predefined type 'System.String' is not defined or imported (35,8): error CS8179: Predefined type 'System.ValueTuple`2' is not defined or imported (39,41): error CS0518: Predefined type 'System.Object' is not defined or imported (39,41): error CS0518: Predefined type 'System.Void' is not defined or imported (17,18): error CS1729: 'object' does not contain a constructor that takes 0 arguments error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Attribute' is not defined or imported error CS0518: Predefined type 'System.Int32' is not defined or imported error CS0656: Missing compiler required member 'System.AttributeUsageAttribute..ctor' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.AllowMultiple' error CS0656: Missing compiler required member 'System.AttributeUsageAttribute.Inherited'