配置Xunit后运行dotnet test出现重复属性错误求助

Here are the actionable steps to resolve your issue:

• Remove xunit from the main project: Your main app (Proj.csproj) doesn't need the xunit package reference—only the test project does. Delete this line from the main project's ItemGroup:

  <PackageReference Include="xunit" Version="2.7.1" />
  

  Having xunit in the main project can trigger conflicting build logic that leads to duplicate attribute generation.

• Disable auto-generated TargetFrameworkAttribute in the test project: If the error persists, add this property to the PropertyGroup in Proj.Tests.csproj:

  <GenerateTargetFrameworkAttribute>false</GenerateTargetFrameworkAttribute>
  

  This prevents the test project from generating its own TargetFrameworkAttribute, which conflicts with the one from the main project.

• Clean and rebuild: After making these changes, run these commands to ensure a fresh build:

  dotnet clean
  dotnet build
  dotnet test
  

This issue usually arises when multiple projects in the solution generate identical auto-generated assembly attributes. Removing unnecessary dependencies and disabling redundant attribute generation should resolve the conflict.

内容的提问来源于stack exchange，提问作者paul h