Analyzer results in build warnings

[ajcvickers]

Create a new console app:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.1</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.0-rc.1.20417.2" />
  </ItemGroup>

</Project>

Build:

0>------- Started building project: Daily
0>/usr/share/dotnet/dotnet exec "/usr/share/dotnet/sdk/3.1.302/Roslyn/bincore/csc.dll" /noconfig /unsafe- /checked- /nowarn:1701,1702,1701,1702 /nostdlib+ /errorreport:prompt /warn:4 /define:TRACE;DEBUG;NETCOREAPP;NETCOREAPP3_1 /highentropyva+ /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/Microsoft.CSharp.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.data.sqlclient/2.0.0/ref/netcoreapp3.1/Microsoft.Data.SqlClient.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore.abstractions/5.0.0-rc.1.20417.2/lib/netstandard2.1/Microsoft.EntityFrameworkCore.Abstractions.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore/5.0.0-rc.1.20417.2/lib/netstandard2.1/Microsoft.EntityFrameworkCore.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore.relational/5.0.0-rc.1.20417.2/lib/netstandard2.1/Microsoft.EntityFrameworkCore.Relational.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore.sqlserver/5.0.0-rc.1.20417.2/lib/netstandard2.1/Microsoft.EntityFrameworkCore.SqlServer.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.caching.abstractions/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.Caching.Abstractions.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.caching.memory/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.Caching.Memory.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.configuration.abstractions/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.Configuration.Abstractions.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.dependencyinjection.abstractions/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.DependencyInjection.Abstractions.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.dependencyinjection/5.0.0-rc.1.20416.7/lib/netstandard2.1/Microsoft.Extensions.DependencyInjection.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.logging.abstractions/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.Logging.Abstractions.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.logging/5.0.0-rc.1.20416.7/lib/netstandard2.1/Microsoft.Extensions.Logging.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.options/5.0.0-rc.1.20416.7/lib/netstandard2.0/Microsoft.Extensions.Options.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.extensions.primitives/5.0.0-rc.1.20416.7/lib/netcoreapp3.0/Microsoft.Extensions.Primitives.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.identitymodel.jsonwebtokens/5.6.0/lib/netstandard2.0/Microsoft.IdentityModel.JsonWebTokens.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.identitymodel.logging/5.6.0/lib/netstandard2.0/Microsoft.IdentityModel.Logging.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.identitymodel.protocols/5.6.0/lib/netstandard2.0/Microsoft.IdentityModel.Protocols.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.identitymodel.protocols.openidconnect/5.6.0/lib/netstandard2.0/Microsoft.IdentityModel.Protocols.OpenIdConnect.dll /reference:/home/ajcvickers/.nuget/packages/microsoft.identitymodel.tokens/5.6.0/lib/netstandard2.0/Microsoft.IdentityModel.Tokens.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/Microsoft.VisualBasic.Core.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/Microsoft.VisualBasic.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/Microsoft.Win32.Primitives.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/mscorlib.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/netstandard.dll /reference:/home/ajcvickers/.nuget/packages/newtonsoft.json/10.0.1/lib/netstandard1.3/Newtonsoft.Json.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.AppContext.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Buffers.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Collections.Concurrent.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Collections.dll /reference:/home/ajcvickers/.nuget/packages/system.collections.immutable/5.0.0-rc.1.20416.7/lib/netstandard2.0/System.Collections.Immutable.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Collections.NonGeneric.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Collections.Specialized.dll /reference:/home/ajcvickers/.nuget/packages/system.componentmodel.annotations/5.0.0-rc.1.20416.7/ref/netstandard2.1/System.ComponentModel.Annotations.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ComponentModel.DataAnnotations.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ComponentModel.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ComponentModel.EventBasedAsync.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ComponentModel.Primitives.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ComponentModel.TypeConverter.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Configuration.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Console.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Core.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Data.Common.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Data.DataSetExtensions.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Data.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.Contracts.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.Debug.dll /reference:/home/ajcvickers/.nuget/packages/system.diagnostics.diagnosticsource/5.0.0-rc.1.20416.7/lib/netstandard1.3/System.Diagnostics.DiagnosticSource.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.FileVersionInfo.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.Process.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.StackTrace.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.TextWriterTraceListener.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.Tools.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.TraceSource.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Diagnostics.Tracing.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Drawing.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Drawing.Primitives.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Dynamic.Runtime.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Globalization.Calendars.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Globalization.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Globalization.Extensions.dll /reference:/home/ajcvickers/.nuget/packages/system.identitymodel.tokens.jwt/5.6.0/lib/netstandard2.0/System.IdentityModel.Tokens.Jwt.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.Compression.Brotli.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.Compression.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.Compression.FileSystem.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.Compression.ZipFile.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.FileSystem.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.FileSystem.DriveInfo.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.IO.FileSystem.Primitives.dll 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/reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.Tasks.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.Tasks.Extensions.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.Tasks.Parallel.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.Thread.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.ThreadPool.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Threading.Timer.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Transactions.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Transactions.Local.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.ValueTuple.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Web.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Web.HttpUtility.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Windows.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.Linq.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.ReaderWriter.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.Serialization.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.XDocument.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.XmlDocument.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.XmlSerializer.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.XPath.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/System.Xml.XPath.XDocument.dll /reference:/usr/share/dotnet/packs/Microsoft.NETCore.App.Ref/3.1.0/ref/netcoreapp3.1/WindowsBase.dll /debug+ /debug:portable /filealign:512 /optimize- /out:obj/Debug/netcoreapp3.1/Daily.dll /target:exe /warnaserror- /utf8output /deterministic+ /analyzer:/home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore.analyzers/5.0.0-rc.1.20417.2/analyzers/dotnet/cs/Microsoft.EntityFrameworkCore.Analyzers.dll Daily.cs "obj/Debug/netcoreapp3.1/.NETCoreApp,Version=v3.1.AssemblyAttributes.cs" obj/Debug/netcoreapp3.1/Daily.AssemblyInfo.cs /warnaserror+:NU1605
0>CSC(0,0): Warning CS8032 : An instance of analyzer Microsoft.EntityFrameworkCore.InternalUsageDiagnosticAnalyzer cannot be created from /home/ajcvickers/.nuget/packages/microsoft.entityframeworkcore.analyzers/5.0.0-rc.1.20417.2/analyzers/dotnet/cs/Microsoft.EntityFrameworkCore.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.7.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified..
0>Daily -> /home/ajcvickers/AllTogetherNow/Daily/bin/Debug/netcoreapp3.1/Daily.dll
0>------- Finished building project: Daily. Succeeded: True. Errors: 0. Warnings: 1
Build completed in 00:00:01.291
Rebuild succeeded with warnings at 11:16:59

[ajcvickers]

/cc @roji

[roji]

Can't repro... Am I missing anything in the attempted repro below?

Source

```c# class Program { static async Task Main(string[] args) { await using var ctx = new BlogContext(); await ctx.Database.EnsureDeletedAsync(); await ctx.Database.EnsureCreatedAsync(); IStateManager stateManager; } } public class BlogContext : DbContext { public DbSet Blogs { get; set; } protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlite("Filename=:memory:"); } public class Blog { public int Id { get; set; } public string Name { get; set; } } ```

csproj

```xml Exe netcoreapp3.1 ```

[smitpatel]

I also hit the same error yesterday.

[ajcvickers]

Maybe different NuGet config? I am using:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <packageSources>
        <clear />
        <add key="aspnetcore" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json" />
        <add key="servicing" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/3.1.103-servicing-014950/nuget/v3/index.json" />
        <add key="NuGet.org" value="https://api.nuget.org/v3/index.json" />
    </packageSources>
</configuration>

[roji]

Tried with this nuget.config, still no dice... Which SDK are you using? Can you post a repo that repros it?

[smitpatel]

@roji - Are you running in IDE?

[ajcvickers]

I'm using this with the 3.1 SDK. Use build tool: /usr/share/dotnet/sdk/3.1.302/MSBuild.dll

[ajcvickers]

@smitpatel I see it in Rider.

[roji]

Tried both VS and cmdline... no warnings in build beyond what the analyzer produces. Here's what I'm using: https://github.com/roji/Test/tree/AnalyzerWarning, can you see if there are any differences or post your own?

[ajcvickers]

@roji Looks like you're using the preview 7 SDK.

[ajcvickers]

Yep. Switched to using the .NET 5 SDK we use for the efcore build and the warning goes away. So this is an issue with using the new package with the .NET 3.1 SDK.

[roji]

Weird... switched to SDK 3.1.401 and I'm still getting nothing (cmdline or VS)... which precise version of the 3.1 SDK are you using? Can you put up a branch somewhere where I can use exactly what you're using?

[ajcvickers]

@roji How would I create such a branch? The SDK is installed on the machine, not part of the repo. I posted the version being used above: 3.1.302

[ajcvickers]

@roji The warning goes away when I update to the latest 3.1 SDK, so I think this can be closed. @smitpatel Any objections?

[smitpatel]

No objections.

[roji]

Ah OK, now everything's clearer, thanks.