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Since updating from Xamarin.iOS version 126.96.36.199 to 188.8.131.52 we've been experiencing the following exception with our app:
Cannot cast from source type to destination type
at System.Net.WebConnectionStream.WriteRequestAsyncCB (IAsyncResult ar) [0x0007] in /Developer/Monotouch/Source/mono/mcs/class/System/System.Net/WebConnectionStream.cs:721
at System.Net.WebAsyncResult.CB (System.Object unused) [0x00000] in /Developer/MonoTouch/Source/mono/mcs/class/System/System.Bet/WebAsyncResult.cs:151
This happens during a synchronisation process (sequential web service calls on a separate thread than the UI thread) or while doing web service calls at random.
We're trying to downgrade to version 184.108.40.206 as a workaround but this issue needs to be addressed.
I have tried to reproduce this issue with some applications which requires web services and using System.Net but I am not getting this type of error or exception.
X.S 4.2.5(Build 0)
@George, Could you please provide project for which you are getting this issue? also please provide iOS device log from View->Pads->iOS Device Log and Symbolicated log(Device log) from Xcode organizer.
This is a duplicate of #18944.
*** This bug has been marked as a duplicate of bug 18944 ***