[assembly: Application(
#if DEBUG
    Debuggable = true
#endif
  , ManageSpaceActivity = typeof(ManageSpaceActivity)
    )
 ]
´´´

this causes the build to fail:

5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007: System.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Type'.
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Android.App.ApplicationAttribute.<>c.<AddManualMapping>b__189_3(ApplicationAttribute self, Object value) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Mono.Android/ApplicationAttribute.Partial.cs:line 47
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Manifest.ManifestDocumentElement`1.Load(T value, CustomAttribute attribute, TypeDefinitionCache cache) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Utilities/ManifestDocumentElement.cs:line 127
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Android.App.ApplicationAttribute.FromCustomAttributeProvider(ICustomAttributeProvider provider, TypeDefinitionCache cache) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Mono.Android/ApplicationAttribute.Partial.cs:line 67
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Tasks.ManifestDocument.CreateApplicationElement(XElement manifest, String applicationClass, List`1 subclasses, TypeDefinitionCache cache) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Utilities/ManifestDocument.cs:line 581
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Tasks.ManifestDocument.Merge(TaskLoggingHelper log, TypeDefinitionCache cache, List`1 subclasses, String applicationClass, Boolean embed, String bundledWearApplicationName, IEnumerable`1 mergedManifestDocuments) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Utilities/ManifestDocument.cs:line 290
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Tasks.GenerateJavaStubs.MergeManifest(NativeCodeGenState codeGenState, Dictionary`2 userAssemblies) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Tasks/GenerateJavaStubs.cs:line 363
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Tasks.GenerateJavaStubs.Run(Boolean useMarshalMethods) in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Tasks/GenerateJavaStubs.cs:line 270
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Xamarin.Android.Tasks.GenerateJavaStubs.RunTask() in /Users/runner/work/1/s/xamarin-android/src/Xamarin.Android.Build.Tasks/Tasks/GenerateJavaStubs.cs:line 102
5>C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\35.0.24\tools\Xamarin.Android.Common.targets(1488,3): error XAGJS7007:    at Microsoft.Android.Build.Tasks.AndroidTask.Execute() in /Users/runner/work/1/s/xamarin-android/external/xamarin-android-tools/src/Microsoft.Android.Build.BaseTasks/AndroidTask.cs:line 25


### Steps to Reproduce

- Add an activity to the solution
- Set ManageSpaceActivity on Application attribute
- Build

### Did you find any workaround?

No.
Wiring the fully qualified name in Android Manifest directly did not solve the issue. 
The activity was not available in the Android application menu

### Relevant log output

```shell