We were unable to automatically build your code. Please replace the call to the autobuild action with your custom build steps. Failure invoking /opt/hostedtoolcache/CodeQL/2.14.0/x64/codeql/csharp/tools/autobuild.sh with arguments . Exit code 1 and error was: /home/runner/work/ChangelogManager/ChangelogManager/Enterwell.CI.Changelog.VSIX/Enterwell.CI.Changelog.VSIX.csproj(123,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Microsoft/VisualStudio/v16.0/VSSDK/Microsoft.VsSDK.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Microsoft/VisualStudio/v16.0/VSSDK/Microsoft.VsSDK.targets" is correct, and that the file exists on disk. /tmp/NuGetScratchrunner/o1htrwnc.eic.nugetrestore.targets(411,5): warning MSB4181: The "MSBuild" task returned false but did not log an error. [/tmp/NuGetScratchrunner/slfn8vwr.0ha.nugetinputs.targets] /tmp/NuGetScratchrunner/o1htrwnc.eic.nugetrestore.targets(423,5): warning : Skipping restore for project '/home/runner/work/ChangelogManager/ChangelogManager/Enterwell.CI.Changelog.VSIX/Enterwell.CI.Changelog.VSIX.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/slfn8vwr.0ha.nugetinputs.targets] /home/runner/work/ChangelogManager/ChangelogManager/Enterwell.CI.Changelog.VSIX/Enterwell.CI.Changelog.VSIX.csproj(123,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Microsoft/VisualStudio/v16.0/VSSDK/Microsoft.VsSDK.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Microsoft/VisualStudio/v16.0/VSSDK/Microsoft.VsSDK.targets" is correct, and that the file exists on disk. /tmp/NuGetScratchrunner/s9jr17tm.dwp.nugetrestore.targets(411,5): warning MSB4181: The "MSBuild" task returned false but did not log an error. [/tmp/NuGetScratchrunner/60ini2w1.wfg.nugetinputs.targets] /tmp/NuGetScratchrunner/s9jr17tm.dwp.nugetrestore.targets(423,5): warning : Skipping restore for project '/home/runner/work/ChangelogManager/ChangelogManager/Enterwell.CI.Changelog.VSIX/Enterwell.CI.Changelog.VSIX.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/60ini2w1.wfg.nugetinputs.targets] Error: Could not auto-detect a suitable build method