the following code is my repo’s config, it works for my repo:
dengyakui/CodeCoverDemo: demo for code coverage (github.com)

name: .NET
	

	on:
	  push:
	    branches: [ main ]
	  pull_request:
	    branches: [ main ]
	

	jobs:
	  build:
	    runs-on: ubuntu-latest
	    steps:
	    - uses: actions/checkout@v2
	    - name: Setup .NET
	      uses: actions/setup-dotnet@v1
	      with:
	        dotnet-version: 5.0.x
	    - name: Restore dependencies
	      run: dotnet restore
	    - name: Build
	      run: dotnet build --no-restore
	    - name: Test
	      run: dotnet test --no-build --verbosity normal --collect "XPlat Code Coverage"
	    - name: Codecov
	      uses: codecov/[email protected]

Thank you very much, Branislav. You are correct, that’s the obvious typo. I’ve fixed it now.

I think there is a typo in this sentence: “Let’s add a project reference from our test project to our class library, then add a using statement to UnitTest1.cs”. Instead it should be written: “Let’s add a project reference from our class library to our test project, then add a using statement to UnitTest1.cs”

Thanks.