CS0436 warning when importing builders into another project.

[bcheidemann]

When importing builders generated with BuilderGenerator into another project, the following warnings are produced:

/home/user/repos/example/Tests/BuilderGenerator/BuilderGenerator.BuilderGenerator/BuilderBaseClass.cs(26,16): warning CS0436: The type 'Builder<T>' in 'BuilderGenerator/BuilderGenerator.BuilderGenerator/BuilderBaseClass.cs' conflicts with the imported type 'Builder<T>' in 'SharedEntities, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'. Using the type defined in 'BuilderGenerator/BuilderGenerator.BuilderGenerator/BuilderBaseClass.cs'. [/home/user/repos/example/Tests/Tests.csproj]

BuilderGenerator is being used to generate builders in a project shared by multiple other projects (including Tests). This has the following .csproj file:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <!-- Disabled because BuilderGenerator produces code missing the #nullable annotation -->
    <NoWarn>$(NoWarn);CS8669</NoWarn>
  </PropertyGroup>

  <ItemGroup>
    <ProjectReference Include="..\..\MyWebApi\MyWebApi.csproj" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Bogus" Version="34.0.2" />
    <PackageReference Include="BuilderGenerator" Version="2.3.0" />
  </ItemGroup>

  <PropertyGroup>
    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>
</Project>

One of the applications using it (Tests) has the following .csproj file:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net7.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>

    <IsPackable>false</IsPackable>
    <IsTestProject>true</IsTestProject>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Bogus" Version="34.0.2" />
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.1" />
    <PackageReference Include="Moq" Version="4.20.69" />
    <PackageReference Include="xunit" Version="2.4.2" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <PackageReference Include="coverlet.collector" Version="3.2.0">
      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
      <PrivateAssets>all</PrivateAssets>
    </PackageReference>
    <None Update="testsettings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\MyWebApi\MyWebApi.csproj" />
    <ProjectReference Include="..\Libs\SharedEntities\SharedEntities.csproj" />
  </ItemGroup>
</Project>

I unfortunately don't have time right now to submit a minimal reproduction, so I understand if this issue gets closed. I'll try and remember to come back to this when I have more time.

[MelGrubb]

First: It doesn't appear that I'm getting notifications from GitHub on these issues, or it got lost in the shuffle/wall of notifications from work. Sorry about that.

Second: I'll have to reproduce this, I guess. That sounds messy. It seems like you shouldn't be seeing the one in the package itself, though, and that's probably where the problem lies. The whole reason I have to inject that file into the project referencing the library is because an assembly isn't supposed to be able to be used as an analyzer AND as a library at the same time.