此问题发生在使用VSCode调试单个测试(而不是整个套件(的MacOS上。当我尝试用vscode调试这个测试时，我得到了以下输出：
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error MSB3883: Unexpected exception: [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : DirectoryNotFoundException: Could not find a part of the path '/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/bin/Debug/net6.0/ref/Reusable.dll'. [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at Interop.ThrowExceptionForIoErrno(ErrorInfo errorInfo, String path, Boolean isDirectory, Func`2 errorRewriter) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at Interop.CheckIo(Error error, String path, Boolean isDirectory, Func`2 errorRewriter) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String path, OpenFlags flags, Int32 mode) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at Microsoft.Win32.SafeHandles.SafeFileHandle.Open(String fullPath, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at System.IO.File.OpenHandle(String path, FileMode mode, FileAccess access, FileShare share, FileOptions options, Int64 preallocationSize) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at System.IO.FileSystem.CopyFile(String sourceFullPath, String destFullPath, Boolean overwrite) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite) [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : at Microsoft.CodeAnalysis.BuildTasks.CopyRefAssembly.Copy() [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
/usr/local/share/dotnet/sdk/6.0.201/Microsoft.Common.CurrentVersion.targets(4650,5): error : [/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/Reusable.csproj]
当然，这里的问题是/Users/username/Documents/coding/CSharp/current_projects/Project-Name/Reusable/bin/Debug/net6.0/ref不存在，但它不是由构建系统生成的！为什么它认为.dll在ref中，而不是在它正上方的文件夹下？
只有当我尝试在VS中调试测试时才会发生这种情况。看起来这是项目的问题。。。有人知道可能出了什么问题吗？如果你需要更多信息，请告诉我。如果需要，我可以包括项目文件。
我也遇到过这种情况。找到了一个解决办法，将其添加到我的项目文件中：
<PropertyGroup>
<ProduceReferenceAssemblyInOutDir>true</ProduceReferenceAssemblyInOutDir>
</PropertyGroup>
在此处发现此解决方法https://github.com/microsoft/vscode-azurefunctions/issues/3051
这是由于.NET 6 SDK中引入了一个突破性的更改。请参阅：https://learn.microsoft.com/dotnet/core/compatibility/sdk/6.0/write-reference-assemblies-to-obj
如果您正在使用.NET Core Test Explorer扩展https://marketplace.visualstudio.com/items?itemName=formulahendry.dotnet-testexplorer(我们大多数人可能都是(，还有另一种解决方案不需要更改csproj文件。在settings.json文件中设置设置："omnisharp.useModernNet": true。
在此处找到：https://github.com/formulahendry/vscode-dotnet-test-explorer/issues/362