Not sure if the problem in my VS Code setup or in.NET.
After a long time of not using .NET on Mac, I installed the latest version.
dotnet --info
Commit: 7feb845744 Runtime Environment: OS Name: Mac OS X OS Version: 10.15 OS Platform: Darwin RID: osx.10.15-x64 Base Path: /usr/local/share/dotnet/sdk/3.1.301/ Host (useful for support): Version: 3.1.5 Commit: 65cd789777 .NET Core SDKs installed: 1.0.0-preview2.1-003155 [/usr/local/share/dotnet/sdk] 1.0.0-preview2-003131 [/usr/local/share/dotnet/sdk] 1.0.0-preview2-003148 [/usr/local/share/dotnet/sdk] 1.0.3 [/usr/local/share/dotnet/sdk] 2.0.0 [/usr/local/share/dotnet/sdk] 2.1.4 [/usr/local/share/dotnet/sdk] 2.1.200 [/usr/local/share/dotnet/sdk] 2.1.301 [/usr/local/share/dotnet/sdk] 2.1.500 [/usr/local/share/dotnet/sdk] 3.1.301 [/usr/local/share/dotnet/sdk] .NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All] Microsoft.AspNetCore.All 2.1.6 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.All] Microsoft.AspNetCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 2.1.6 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 3.1.5 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App] Microsoft.NETCore.App 1.0.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 1.0.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 1.0.4 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 1.1.0-preview1-001100-00 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 1.1.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.7 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.6 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App] Microsoft.NETCore.App 3.1.5 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Then I ran:
dotnet new xunit -o leetcode
cd leetcode
code .
This starts VS Code. I open the unit test example and see that [Fact] is highlighted as an error: "The type 'Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. [leetcode]"
And another problem points to ~/nuget/packages/microsoft.net.test.sdk/16.5.0/build/netcoreapp2.1. The same text "The type 'Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'. [leetcode]"
dotnet buld, dotnet test, dotnet restore work just fine, but it's annoying to see these errors in VS Code.
I suspect the reason is some rudiment path value or an old .NET runtime. What I want to understand is what is the right way to debug and fix such a problem. The project is actually <TargetFramework>netcoreapp3.1</TargetFramework>. Changing it to <TargetFramework>netcoreapp2.0</TargetFramework> looks wrong and doesn't help.
Thank you in advance!
