this will be good if fixed

Option path-to-lcov is now deprecated, use file instead.

maybe version v2.2.3

"You can also skip using the file option and coveralls will try to find all supported coverage files and combine their data."
"If coveralls fails to determine your coverage report format, use explicit format option to specify it. See supported values."

I think that now it's fixed!

It only take cryptography https://coveralls.io/builds/65868879

I just tried something to be sure, let's see the result.

Recently I got some problems on devcontainer if these commands were not executed before

Since the last command is just used for ubuntu

maybe remove the rest of the parameter for the other matrix.os

    - name: Test
      run: |
        find tests -name *.csproj | xargs -I % dotnet add % package coverlet.msbuild
        dotnet test /p:CollectCoverage=true /p:CoverletOutputFormat=lcov /p:CoverletOutput=${GITHUB_WORKSPACE}/coverage/lcov /p:MergeWith="./coverage/lcov.net7.0.info"
    - name: Coveralls
      if: matrix.os == 'ubuntu-latest'
      uses: coverallsapp/github-action@v2.2.3
      with:
        github-token: ${{ secrets.GITHUB_TOKEN }}
        file: ./coverage/lcov.net7.0.info
        ```

why we need merge? Which additional reports should be added?

Please @vncoelho wait for my wait for review

The doc said that it's required to merge the test one by one, and convert to the desired format in the last one:

https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/Examples/MSBuild/MergeWith/HowTo.md

The doc said that it's required to merge the test one by one, and convert to the desired format in the last one:

https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/Examples/MSBuild/MergeWith/HowTo.md

I saw this as well later

I think you should use the default as well without specifying, it will be json

/p:CoverletOutput=../CoverageResults/ /p:MergeWith="../CoverageResults/coverage.json"

It works now :)

This should also be done in modules and devpack