Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: microsoft/variable-substitution@v1, actions/setup-dotnet@v1, actions/upload-artifact@v2. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.

The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds.