Bug 12283 - Cannot register two managed types ('Test.UIApplication' and 'MonoTouch.UIKit.UIApplication')
Summary: Cannot register two managed types ('Test.UIApplication' and 'MonoTouch.UIKit....
Alias: None
Product: iOS
Classification: Xamarin
Component: Samples ()
Version: 6.3.x
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2013-05-17 10:51 UTC by mono.developer.kr
Modified: 2013-05-17 14:42 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

vs2012 project. (259.42 KB, application/zip)
2013-05-17 10:51 UTC, mono.developer.kr

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Description mono.developer.kr 2013-05-17 10:51:00 UTC
If it has used same namespace as native ios. Xamarin.ios beta did appear an error below. This report has attached an example file.

Cannot register two managed types ('Test.Native.UIApplication' and 'MonoTouch.UIKit.UIApplication') with the same native name ('UIApplication').
  at MonoTouch.Registrar.Registrar.RegisterType (System.Type type, System.Collections.Generic.List`1 exceptions) [0x000ca] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/Registrar.cs:569 
  at MonoTouch.Registrar.Registrar.RegisterAssembly (System.Reflection.Assembly assembly) [0x0005b] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/Registrar.cs:776
Comment 1 mono.developer.kr 2013-05-17 10:51:42 UTC
Created attachment 3985 [details]
vs2012 project.
Comment 2 Sebastien Pouliot 2013-05-17 14:42:59 UTC
That's normal, only one `UIApplication` can be registered *correctly* with ObjC. 

IOW if ObjC needs to calls UIApplication then it can only end up calling one managed type. If two are registred which one will it be ?

Earlier versions did not check for duplicates and that created weird random errors (depending on which one registered first). Newer versions will report an error.