The component crashes in MAUI with unsupported platforms

[erossini]

Describe the bug
In my MAUI projects, I have all the platforms (Windows, iOS, Android, MacCatalyst). When I run the application for MacCatalyst, the application crashes. I have to create a different project for it.

System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotImplementedException: This functionality is not implemented in the portable version of this assembly.  You should reference the NuGet package from your main application project in order to reference the platform-specific implementation.
  at at Plugin.MauiMTAdmob.CrossMauiMTAdmob.get_Current()
  at MauiAdMob.MainPage..ctor() in /Users/enrico/Projects/MauiAdMob/MauiAdMob/MainPage.xaml.cs:14
  at at System.Reflection.ConstructorInvoker.InterpretedInvoke(Object obj, Span`1 args, BindingFlags invokeAttr)
  --- End of inner exception stack trace ---
  at at System.RuntimeType.CreateInstanceMono(Boolean nonPublic, Boolean wrapExceptions)
  at at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean wrapExceptions)
  at at System.Activator.CreateInstance(Type type, Boolean nonPublic, Boolean wrapExceptions)
  at at System.Activator.CreateInstance(Type type, Boolean nonPublic)
  at at System.Activator.CreateInstance(Type type)
  at at Microsoft.Maui.Controls.ShellContent.<>c__DisplayClass19_0.<Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent>b__0()
  at at Microsoft.Maui.Controls.ElementTemplate.CreateContent()
  at at Microsoft.Maui.Controls.Internals.DataTemplateExtensions.CreateContent(DataTemplate self, Object item, BindableObject container)
  at at Microsoft.Maui.Controls.ShellContent.Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent()
  at at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRootRenderer.LoadRenderers()
  at at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRootRenderer.ViewDidLoad()
  at at UIKit.UIApplication.UIApplicationMain(Int32 argc, String[] argv, IntPtr principalClassName, IntPtr delegateClassName)
  at at UIKit.UIApplication.Main(String[] args, Type principalClass, Type delegateClass)
  at MauiAdMob.Program.Main(String[] args) in /Users/enrico/Projects/MauiAdMob/MauiAdMob/Platforms/MacCatalyst/Program.cs:13

Should it be possible to fix this issue, so I can have only one project for everything?

Thank you in advance.
Enrico

[marcojak]

Hi Enrico,
MtAdmob is for Xamarin. Are you referring to the plugin for MAUI or this one?
I'll have a look and I'll update it to avoid the crash. I have few projects going on right now but I'll try to fix it asap.

[erossini]

Thank you for the quick reply.

The one for MAUI. I added Plugin.MauiMTAdmob Is it the correct plugin? I was following your demo code.

Plus, my project uses NET7.

[HardBlock729]

I was following your demo code.

I used this to get a .Net 8 project going as well. I found my issue was (among a few other smaller things lol) that I was putting the meta-data in the manifest not in the application tag in my AndroidManifest.xml

[marcojak]

I'll fix the crash on MacCatalyst in the next version.
Of course there will be no ads (this might change in future) but at least it will not crash