.NET 8 Compatibility

[xts-velkumars]

Good day @lkosson,

Whether it supported in .NET 8 ?

[lkosson]

I haven't tested it yet. There shouldn't be any major issues, apart from Microsoft.CodeAnalysis.VisualBasic package reference update as in previous .NET releases.

[bbteam17]

Hi , after upgrade to .Net 8 , throw below exception , in .Net7 it is working without any problem .

Microsoft.Reporting.NETCore.LocalProcessingException: An error occurred during local report processing. ---> Microsoft.Reporting.DefinitionInvalidException: The definition of the report '' is invalid. ---> Microsoft.ReportingServices.ReportProcessing.ReportProcessingException: An unexpected error occurred in Report Processing. ---> System.MissingMethodException: Method not found: 'System.Exception Roslyn.Utilities.ExceptionUtilities.get_Unreachable()'. --- End of inner exception stack trace --- at Microsoft.Reporting.NETCore.LocalReport.EnsureExecutionSession() at Microsoft.Reporting.NETCore.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, PageCountMode pageCountMode, CreateAndRegisterStream createStreamCallback, Warning[]& warnings) at Microsoft.Reporting.NETCore.LocalReport.InternalRender(String format, Boolean allowInternalRenderers, String deviceInfo, PageCountMode pageCountMode, String& mimeType, String& encoding, String& fileNameExtension, String[]& streams, Warning[]& warnings) at Microsoft.Reporting.NETCore.LocalReport.Render(String format, String deviceInfo, PageCountMode pageCountMode, String& mimeType, String& encoding, String& fileNameExtension, String[]& streams, Warning[]& warnings) at Microsoft.Reporting.NETCore.Report.Render(String format, String deviceInfo, String& mimeType, String& encoding, String& fileNameExtension, String[]& streams, Warning[]& warnings) at Microsoft.Reporting.NETCore.Report.Render(String format, String deviceInfo) at Microsoft.Reporting.NETCore.Report.Render(String format)

[lkosson]

Looks like mismatched Microsoft.CodeAnalysis package version reference. I'll look into it and push updated nuget package later this week.

[bbteam17]

Yes you right , after upgrade to .Net8 then throw below exception error NU1107: Version conflict detected for Microsoft.CodeAnalysis.Common. Install/reference Microsoft.CodeAnalysis.Common 4.5.0 directly to project xxx.Api to resolve this issue. error NU1107: xxx.Api -> Microsoft.EntityFrameworkCore.Design 8.0.0 -> Microsoft.CodeAnalysis.CSharp.Workspaces 4.5.0 -> Microsoft.CodeAnalysis.Common (= 4.5.0) error NU1107: xxx.Api -> ReportViewerCore.NETCore 15.1.18 -> Microsoft.CodeAnalysis.VisualBasic 4.4.0 -> Microsoft.CodeAnalysis.Common (= 4.4.0). 2>Done building project "xxx.Api.csproj" -- FAILED.

[bbteam17]

after add manuel <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="4.5.0" /> compiled with warning
warning NU1608: Detected package version outside of dependency constraint: Microsoft.CodeAnalysis.VisualBasic 4.4.0 requires Microsoft.CodeAnalysis.Common (= 4.4.0) but version Microsoft.CodeAnalysis.Common 4.5.0 was resolved. but then throw exception in runtime as above The definition of the report '' is invalid. ... thx

[lkosson]

.NET 8 scaffolding support calls for Microsoft.VisualStudio.Web.CodeGeneration.Design version 8, which transitively depends on Microsoft.CodeAnalysis version 4.8, which is available only as a prerelease, which I'm hesitant to reference.

Also VS 17.8, which is required by .NET 8 SDK, is bugged beyond recognition so I had to rollback to 17.7. That means I can't compile and test RVC against newest framework.

Until Microsoft gets their shit together, ReportViewerCore won't support .NET 8.

[crazycga]

Wow that could be a while. Nut .NET 8 was officially released - what? - four days ago?

[lkosson]

On second thought, waiting for them to fix VS 17.8 [1], [2], [3] and scaffolding references might not be best course of action if the package is to be released this year.

I'm compiling and packaging .NET 8 version by hand and referencing same prerelease assemblies as VS does. RVC version 15.1.19 should be available on nuget any minute now. Let's hope nothing breaks.

[bbteam17]

Hi I tested with new version , after add below refs, then compiled , and its working now. thx .

[lkosson]

You shouldn't need those explicit references to Microsoft.CodeAnalysis packages in your project unless you are referencing some other packages that break those dependencies. Judging from your earlier comment, it most likely is xxx.Api package, which references EF Core, which asks for 4.5.0 version of Microsoft.CodeAnalysis. In that case manually resolving the dependency as you did is the only workaround.

[xts-velkumars]

@lkosson, Thank you