We were unable to automatically build your code. Please replace the call to the autobuild action with your custom build steps. Encountered a fatal error while running "/opt/hostedtoolcache/CodeQL/2.14.1/x64/codeql/csharp/tools/autobuild.sh". Exit code was 1 and error was: /home/runner/work/grade_app/grade_app/grade_app.Android/grade_app.Android.csproj(211,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Xamarin/Android/Xamarin.Android.CSharp.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Xamarin/Android/Xamarin.Android.CSharp.targets" is correct, and that the file exists on disk. /home/runner/work/grade_app/grade_app/grade_app.iOS/grade_app.iOS.csproj(326,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Xamarin/iOS/Xamarin.iOS.CSharp.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Xamarin/iOS/Xamarin.iOS.CSharp.targets" is correct, and that the file exists on disk. /tmp/NuGetScratchrunner/419h0k5a.kly.nugetrestore.targets(411,5): warning MSB4181: The "MSBuild" task returned false but did not log an error. [/tmp/NuGetScratchrunner/aybgheh0.03v.nugetinputs.targets] /tmp/NuGetScratchrunner/419h0k5a.kly.nugetrestore.targets(423,5): warning : Skipping restore for project '/home/runner/work/grade_app/grade_app/grade_app.Android/grade_app.Android.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/aybgheh0.03v.nugetinputs.targets] /tmp/NuGetScratchrunner/419h0k5a.kly.nugetrestore.targets(423,5): warning : Skipping restore for project '/home/runner/work/grade_app/grade_app/grade_app.iOS/grade_app.iOS.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/aybgheh0.03v.nugetinputs.targets] /home/runner/work/grade_app/grade_app/grade_app.Android/grade_app.Android.csproj(211,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Xamarin/Android/Xamarin.Android.CSharp.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Xamarin/Android/Xamarin.Android.CSharp.targets" is correct, and that the file exists on disk. /home/runner/work/grade_app/grade_app/grade_app.iOS/grade_app.iOS.csproj(326,3): error MSB4019: The imported project "/usr/lib/mono/xbuild/Xamarin/iOS/Xamarin.iOS.CSharp.targets" was not found. Confirm that the expression in the Import declaration "/usr/lib/mono/xbuild/Xamarin/iOS/Xamarin.iOS.CSharp.targets" is correct, and that the file exists on disk. /tmp/NuGetScratchrunner/o4mhnqf7.jn1.nugetrestore.targets(413,5): warning MSB4181: The "MSBuild" task returned false but did not log an error. [/tmp/NuGetScratchrunner/3y4ekvgc.f2g.nugetinputs.targets] /tmp/NuGetScratchrunner/o4mhnqf7.jn1.nugetrestore.targets(425,5): warning : Skipping restore for project '/home/runner/work/grade_app/grade_app/grade_app.Android/grade_app.Android.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/3y4ekvgc.f2g.nugetinputs.targets] /tmp/NuGetScratchrunner/o4mhnqf7.jn1.nugetrestore.targets(425,5): warning : Skipping restore for project '/home/runner/work/grade_app/grade_app/grade_app.iOS/grade_app.iOS.csproj'. The project file may be invalid or missing targets required for restore. [/tmp/NuGetScratchrunner/3y4ekvgc.f2g.nugetinputs.targets] Error: Could not auto-detect a suitable build method