Hi,

 

Can somebody give me an example that would lead to the exception below?

Is that simply caused by trying to case a null ref into an NSObject?

Would can cause this? Does it mean that there is a managed object that tries
to access its unmanaged counterpart that no longer exists?

 

System.InvalidCastException: Cannot cast from source type to destination
type.

at MonoTouch.ObjCRuntime.Runtime.TryGetNSObject (IntPtr ptr) [0x00000] in
<filename unknown>:0 

at MonoTouch.ObjCRuntime.Runtime.GetNSObject (IntPtr ptr) [0x00000] in
<filename unknown>:0 

at MonoTouch.ObjCRuntime.Runtime.GetNSObjectWrapped (IntPtr ptr) [0x00000]
in <filename unknown>:0 

at (wrapper native-to-managed)
MonoTouch.ObjCRuntime.Runtime:GetNSObjectWrapped (intptr)

 

 

René

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