System.MissingMethodException on simple source generator about uno.sourcegeneration HOT 9 CLOSED

This generally happens when the Rolsyn packages of the source generator are not using an high enough version. Could you share your generator csproj ?

from uno.sourcegeneration.

The csproj doesn't contain the versions (using paket), here the content of the paket.lock file:

remote: https://api.nuget.org/v3/index.json
Castle.Core (4.3.1)
Humanizer.Core (2.5.1)
NETStandard.Library (>= 1.6.1)
JetBrains.Annotations (2018.2.1)
Microsoft.Build (15.8.166)
Microsoft.Build.Framework (>= 15.8.166)
Microsoft.VisualStudio.Setup.Configuration.Interop (>= 1.16.30)
System.Collections.Immutable (>= 1.5)
System.IO.Compression (>= 4.3)
System.Runtime.InteropServices.RuntimeInformation (>= 4.3)
System.Threading.Tasks.Dataflow (>= 4.5.24)
Microsoft.Build.Engine (15.8.166)
Microsoft.Build.Framework (>= 15.8.166)
Microsoft.Build.Framework (15.8.166)
Microsoft.Build.Tasks.Core (15.8.166)
Microsoft.Build.Framework (>= 15.8.166)
Microsoft.Build.Utilities.Core (>= 15.8.166)
Microsoft.VisualStudio.Setup.Configuration.Interop (>= 1.16.30)
System.Collections.Immutable (>= 1.5)
System.Threading.Tasks.Dataflow (>= 4.5.24)
Microsoft.Build.Utilities.Core (15.8.166)
Microsoft.Build.Framework (>= 15.8.166)
Microsoft.VisualStudio.Setup.Configuration.Interop (>= 1.16.30)
System.Collections.Immutable (>= 1.5)
System.Runtime.InteropServices.RuntimeInformation (>= 4.3)
Microsoft.CodeAnalysis (2.9)
Microsoft.CodeAnalysis.CSharp.Workspaces (2.9)
Microsoft.CodeAnalysis.VisualBasic.Workspaces (2.9)
Microsoft.CodeAnalysis.Analyzers (2.6.2)
Microsoft.CodeAnalysis.Common (2.9)
Microsoft.CodeAnalysis.Analyzers (>= 2.6.1)
System.AppContext (>= 4.3)
System.Collections (>= 4.3)
System.Collections.Concurrent (>= 4.3)
System.Collections.Immutable (>= 1.5)
System.Console (>= 4.3)
System.Diagnostics.Debug (>= 4.3)
System.Diagnostics.FileVersionInfo (>= 4.3)
System.Diagnostics.StackTrace (>= 4.3)
System.Diagnostics.Tools (>= 4.3)
System.Dynamic.Runtime (>= 4.3)
System.Globalization (>= 4.3)
System.IO.Compression (>= 4.3)
System.IO.FileSystem (>= 4.3)
System.IO.FileSystem.Primitives (>= 4.3)
System.Linq (>= 4.3)
System.Linq.Expressions (>= 4.3)
System.Reflection (>= 4.3)
System.Reflection.Metadata (>= 1.6)
System.Resources.ResourceManager (>= 4.3)
System.Runtime (>= 4.3)
System.Runtime.Extensions (>= 4.3)
System.Runtime.InteropServices (>= 4.3)
System.Runtime.Numerics (>= 4.3)
System.Security.Cryptography.Algorithms (>= 4.3)
System.Security.Cryptography.Encoding (>= 4.3)
System.Security.Cryptography.X509Certificates (>= 4.3)
System.Text.Encoding (>= 4.3)
System.Text.Encoding.CodePages (>= 4.3)
System.Text.Encoding.Extensions (>= 4.3)
System.Threading (>= 4.3)
System.Threading.Tasks (>= 4.3)
System.Threading.Tasks.Extensions (>= 4.3)
System.Threading.Tasks.Parallel (>= 4.3)
System.Threading.Thread (>= 4.3)
System.ValueTuple (>= 4.3)
System.Xml.ReaderWriter (>= 4.3)
System.Xml.XDocument (>= 4.3)
System.Xml.XmlDocument (>= 4.3)
System.Xml.XPath.XDocument (>= 4.3)
Microsoft.CodeAnalysis.CSharp (2.9)
Microsoft.CodeAnalysis.Common (2.9)
Microsoft.CodeAnalysis.CSharp.Workspaces (2.9)
Microsoft.CodeAnalysis.CSharp (2.9)
Microsoft.CodeAnalysis.Workspaces.Common (2.9)
Microsoft.CodeAnalysis.VisualBasic (2.9)
Microsoft.CodeAnalysis.Common (>= 2.9)
Microsoft.CodeAnalysis.VisualBasic.Workspaces (2.9)
Microsoft.CodeAnalysis.VisualBasic (2.9)
Microsoft.CodeAnalysis.Workspaces.Common (2.9)
Microsoft.CodeAnalysis.Workspaces.Common (2.9)
Microsoft.CodeAnalysis.Common (2.9)
SQLitePCLRaw.bundle_green (>= 1.1.2)
System.Composition (>= 1.0.31)
Microsoft.NETCore.Platforms (2.1.1)
Microsoft.Reactive.Testing (4.1.2)
System.Reactive (>= 4.1.2)
System.Threading.Tasks.Extensions (>= 4.5.1)
Microsoft.VisualStudio.Setup.Configuration.Interop (1.16.30)
Moq (4.10)
Castle.Core (>= 4.3.1)
System.Threading.Tasks.Extensions (>= 4.3)
System.ValueTuple (>= 4.4)
NETStandard.Library (2.0.3)
Microsoft.NETCore.Platforms (>= 1.1)
NuGet.CommandLine (4.7.1)
NUnit (3.11)
PostSharp (6.0.28)
PostSharp.Redist (>= 6.0.28 < 7.0)
PostSharp.Redist (6.0.28)
SQLitePCLRaw.bundle_green (1.1.11)
SQLitePCLRaw.core (>= 1.1.11)
SQLitePCLRaw.lib.e_sqlite3.linux (>= 1.1.11)
SQLitePCLRaw.lib.e_sqlite3.osx (>= 1.1.11)
SQLitePCLRaw.lib.e_sqlite3.v110_xp (>= 1.1.11)
SQLitePCLRaw.provider.e_sqlite3.net45 (>= 1.1.11)
SQLitePCLRaw.core (1.1.11)
SQLitePCLRaw.lib.e_sqlite3.linux (1.1.11)
SQLitePCLRaw.lib.e_sqlite3.osx (1.1.11)
SQLitePCLRaw.lib.e_sqlite3.v110_xp (1.1.11)
SQLitePCLRaw.provider.e_sqlite3.net45 (1.1.11)
SQLitePCLRaw.core (>= 1.1.11)
System.AppContext (4.3)
System.Collections (4.3)
System.Collections.Concurrent (4.3)
System.Collections.Immutable (1.5)
System.Composition (1.2)
System.Composition.AttributedModel (>= 1.2)
System.Composition.Convention (>= 1.2)
System.Composition.Hosting (>= 1.2)
System.Composition.Runtime (>= 1.2)
System.Composition.TypedParts (>= 1.2)
System.Composition.AttributedModel (1.2)
System.Composition.Convention (1.2)
System.Composition.AttributedModel (>= 1.2)
System.Composition.Hosting (1.2)
System.Composition.Runtime (>= 1.2)
System.Composition.Runtime (1.2)
System.Composition.TypedParts (1.2)
System.Composition.AttributedModel (>= 1.2)
System.Composition.Hosting (>= 1.2)
System.Composition.Runtime (>= 1.2)
System.Console (4.3.1)
System.Diagnostics.Debug (4.3)
System.Diagnostics.FileVersionInfo (4.3)
System.Diagnostics.StackTrace (4.3)
System.Diagnostics.Tools (4.3)
System.Dynamic.Runtime (4.3)
System.Globalization (4.3)
System.IO.Compression (4.3)
System.IO.FileSystem (4.3)
System.IO.FileSystem.Primitives (>= 4.3)
System.IO.FileSystem.Primitives (4.3)
System.Linq (4.3)
System.Linq.Expressions (4.3)
System.Reactive (4.1.2)
System.Threading.Tasks.Extensions (>= 4.5.1)
System.ValueTuple (>= 4.4)
System.Reflection (4.3)
System.Reflection.Metadata (1.6)
System.Collections.Immutable (>= 1.5)
System.Resources.ResourceManager (4.3)
System.Runtime (4.3)
System.Runtime.CompilerServices.Unsafe (4.5.2)
System.Runtime.Extensions (4.3)
System.Runtime.InteropServices (4.3)
System.Runtime (>= 4.3)
System.Runtime.InteropServices.RuntimeInformation (4.3)
System.Runtime.Numerics (4.3)
System.Security.Cryptography.Algorithms (4.3.1)
System.Security.Cryptography.Primitives (>= 4.3)
System.Security.Cryptography.Encoding (4.3)
System.Security.Cryptography.Primitives (4.3)
System.Security.Cryptography.X509Certificates (4.3.2)
System.Security.Cryptography.Algorithms (>= 4.3)
System.Security.Cryptography.Encoding (>= 4.3)
System.Text.Encoding (4.3)
System.Text.Encoding.CodePages (4.5)
System.Runtime.CompilerServices.Unsafe (>= 4.5)
System.Text.Encoding.Extensions (4.3)
System.Threading (4.3)
System.Threading.Tasks (4.3)
System.Threading.Tasks.Dataflow (4.9)
System.Threading.Tasks.Extensions (4.5.1)
System.Runtime.CompilerServices.Unsafe (>= 4.5)
System.Threading.Tasks.Parallel (4.3)
System.Threading.Thread (4.3)
System.ValueTuple (4.5)
System.Xml.ReaderWriter (4.3.1)
System.Xml.XDocument (4.3)
System.Xml.XmlDocument (4.3)
System.Xml.XPath (4.3)
System.Xml.XPath.XDocument (4.3)
System.Xml.XPath (>= 4.3)
Uno.SourceGeneration (1.26)
Microsoft.Build (>= 14.3)
Microsoft.Build.Engine (>= 14.3)
Microsoft.Build.Tasks.Core (>= 14.3)
Microsoft.CodeAnalysis (>= 1.3.2)
Microsoft.CodeAnalysis.Common (>= 1.3.2)
Microsoft.CodeAnalysis.CSharp (>= 1.3.2)
Microsoft.CodeAnalysis.CSharp.Workspaces (>= 1.3.2)
Microsoft.CodeAnalysis.Workspaces.Common (>= 1.3.2)
Uno.SourceGenerationTasks (1.26)

from uno.sourcegeneration.

Looks like it's correct. Would you be able to share a repro solution ?

from uno.sourcegeneration.

I've been able to reproduce a similar problem, and the best way to work around it is to do the following:

		<PackageReference Include="Microsoft.CodeAnalysis.Common">
			<Version>2.3.1</Version>
			<ExcludeAssets>runtime</ExcludeAssets>
		</PackageReference>
		<PackageReference Include="Microsoft.CodeAnalysis.CSharp">
			<Version>2.3.1</Version>
			<ExcludeAssets>runtime</ExcludeAssets>
		</PackageReference>
		<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces">
			<Version>2.3.1</Version>
			<ExcludeAssets>runtime</ExcludeAssets>
		</PackageReference>
		<PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common">
			<Version>2.3.1</Version>
			<ExcludeAssets>runtime</ExcludeAssets>
		</PackageReference>

This <ExcludeAssets>runtime</ExcludeAssets> prevents the runtime from loading an incorrect version of the Roslyn binaries, as those are not copied to the output folder of the generator.

from uno.sourcegeneration.

I'm having a similar issue in my generators. Specifically with regards to nullable reference annotations. I am referencing version 3.6.0 of Microsoft.CodeAnalysis with ExcludeAssets specified as above, but It doesn't appear that my source generators are actually getting 3.6.0. One example of what I'm running into is if I try to analyze a property like this:

public string? Name { get; }

I was told by an MS employee on the Roslyn team that by default, if I do a ToString() on the property type (IPropertySymbol.Type), it should include the nullable annotation. However, instead of getting string?, I'm getting string. So I try to look at the nullable annotation and add it manually, but IPropertySymbol.Type.NullableAnnotation gives me this exception:

error CS1061: 'ITypeSymbol' does not contain a definition for 'NullableAnnotation' and no accessible extension method 'NullableAnnotation' accepting a first argument of type 'ITypeSymbol' could be found (are you missing a using directive or an assembly reference?)

It looks like my generators aren't run with 3.6.0 despite referencing that version in my project. Am I doing something wrong?

from uno.sourcegeneration.

In current builds of SourceGenerationTasks, the Roslyn version used to run the generators is:

I've made #124 to update the version to 3.6.

from uno.sourcegeneration.

Thanks! I wasn't sure if the version I used in my project had to match the version in SourceGenerationTasks, or if a newer version would be used at runtime if I specified one. Seems like it needs to match, so I'm looking forward to the new build.

from uno.sourcegeneration.

Looks like #124 still hasn't been merged, any chance of pushing that through?

from uno.sourcegeneration.

At the time there were some issues with .NET 5 preview that were not resolved. There still are, but we can work around it for now.

The build package will be available here for testing: https://pkgs.dev.azure.com/uno-platform/1dd81cbd-cb35-41de-a570-b0df3571a196/_packaging/unoplatformdev/nuget/v3/index.json

from uno.sourcegeneration.