macOS InvalidProjectFileException Xamarin.Forms Android and iOS projects

[davidortinau]

Describe the bug

I'm able to upgrade a Xamarin.Forms library project, but the Android and iOS "head" projects both fail with similar errors.

I'm running this command and selecting the different projects interactively:

upgrade-assistant upgrade --operation Inplace --targetFramework net8.0

The error:

Microsoft.Build.Exceptions.InvalidProjectFileException: The imported project "/usr/local/share/dotnet/sdk/8.0.204/Xamarin/Android/Xamarin.Android.CSharp.targets" was not
found. Confirm that the expression in the Import declaration "/usr/local/share/dotnet/sdk/8.0.204/Xamarin/Android/Xamarin.Android.CSharp.targets" is correct, and that the
file exists on disk.  /Users/davidortinau/work/ToUpgrade/Xappy/Xappy/Xappy.Android/Xappy.Android.csproj
   at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject(String errorSubCategoryResourceName, IElementLocation elementLocation, String resourceName, Object[]
args)
   at Microsoft.Build.Shared.ProjectErrorUtilities.VerifyThrowInvalidProject[T1,T2](Boolean condition, String errorSubCategoryResourceName, IElementLocation elementLocation,
String resourceName, T1 arg0, T2 arg1)
   at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject[T1,T2](IElementLocation elementLocation, String resourceName, T1 arg0, T2 arg1)
   at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImportsFromUnescapedImportExpression(String directoryOfImportingFile, ProjectImportElement importElement, String
unescapedExpression, Boolean throwOnFileNotExistsError, List`1& imports)
   at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImportsFromUnescapedImportExpressionConditioned(String directoryOfImportingFile, ProjectImportElement
importElement, List`1& projects, SdkResult& sdkResult, Boolean throwOnFileNotExistsError)
   at Microsoft.Build.Evaluation.Evaluator`4.ExpandAndLoadImports(String directoryOfImportingFile, ProjectImportElement importElement, SdkResult& sdkResult)
   at Microsoft.Build.Evaluation.Evaluator`4.EvaluateImportElement(String directoryOfImportingFile, ProjectImportElement importElement)
   at Microsoft.Build.Evaluation.Evaluator`4.PerformDepthFirstPass(ProjectRootElement currentProjectOrImport)
   at Microsoft.Build.Evaluation.Evaluator`4.Evaluate()
   at Microsoft.Build.Evaluation.Evaluator`4.Evaluate(IEvaluatorData`4 data, ProjectRootElement root, ProjectLoadSettings loadSettings, Int32 maxNodeCount,
PropertyDictionary`1 environmentProperties, ILoggingService loggingService, IItemFactory`2 itemFactory, IToolsetProvider toolsetProvider, ProjectRootElementCacheBase
projectRootElementCache, BuildEventContext buildEventContext, ISdkResolverService sdkResolverService, Int32 submissionId, EvaluationContext evaluationContext, Boolean
interactive)
   at Microsoft.Build.Evaluation.Project.ProjectImpl.Reevaluate(ILoggingService loggingServiceForEvaluation, ProjectLoadSettings loadSettings, EvaluationContext
evaluationContext)
   at Microsoft.Build.Evaluation.Project.ProjectImpl.ReevaluateIfNecessary(ILoggingService loggingServiceForEvaluation, ProjectLoadSettings loadSettings, EvaluationContext
evaluationContext)
   at Microsoft.Build.Evaluation.Project.ProjectImpl.ReevaluateIfNecessary(ILoggingService loggingServiceForEvaluation, EvaluationContext evaluationContext)
   at Microsoft.Build.Evaluation.Project.ProjectImpl.ReevaluateIfNecessary(EvaluationContext evaluationContext)

• Include the log file upgrade-assistant.clef that is produced in the working directory

I don't have such a file.

A clear and concise description of what the bug is.

To Reproduce

The project I'm upgrading is [email protected]:davidortinau/Xappy.git

I had better luck from Windows with the VS Extension

Further technical details

macOS 14.5

• Include the output of dotnet --list-sdks

8.0.204 [/usr/local/share/dotnet/sdk]
9.0.100-preview.4.24265.4 [/usr/local/share/dotnet/sdk]

• Include the output of upgrade-assistant --version

0.5.651

[mgoertz-msft]

The imported project "/usr/local/share/dotnet/sdk/8.0.204/Xamarin/Android/Xamarin.Android.CSharp.targets" was not
found.

@davidortinau Do you have that file there? Could the Android/iOS workloads be missing?