About MVVM's ObservableObject attribute with ObservableProperty

[jeromelaban]

From Discord:

Hi, have anyone used community toolkit's MVVM's ObservableObject attribute with ObservableProperty on a wasm project successfully before? Encountered the following error when the code works in UWP:

1>CSC : warning CS8785: Generator 'ObservableObjectGenerator' failed to generate source. It will not contribute to the output and compilation errors may occur as a result. Exception was of type 'ArgumentException' with message 'The hintName 'app.MainPage.g.cs' of the added source file must be unique within a generator.
1>C:\app\app\app.Wasm\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.ObservablePropertyGenerator\app.MainPage.g.cs(19,21,19,39): error CS0103: The name 'OnPropertyChanging' does not exist in the current context
1>C:\app\app\app.Wasm\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.ObservablePropertyGenerator\app.MainPage.g.cs(22,21,22,38): error CS0103: The name 'OnPropertyChanged' does not exist in the current context
1>C:\app\app\app.Wasm\CommunityToolkit.Mvvm.SourceGenerators\CommunityToolkit.Mvvm.SourceGenerators.ObservablePropertyGenerator\app.MainPage.g.cs(23,21,23,38): error CS0103: The name 'OnPropertyChanged' does not exist in the current context

[jeromelaban]

Thanks for the report! We've made some modifications recently related to this in Uno, and you may want to try with the Uno.UI latest prerelease packages and let us know.