Bug 40075 - MTOUCH error MT4109 : failed tu compile the generated registar code
Summary: MTOUCH error MT4109 : failed tu compile the generated registar code
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: XI 9.0 (iOS9)
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
Depends on:
Reported: 2016-04-04 08:57 UTC by Simon
Modified: 2016-04-04 09:48 UTC (History)
3 users (show)

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

Error detail (too long for the comment) (193.73 KB, text/plain)
2016-04-04 08:57 UTC, Simon

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Description Simon 2016-04-04 08:57:31 UTC
Created attachment 15592 [details]
Error detail (too long for the comment)

When I'm trying to compile on physical iPhone, i get the following error (see attachment) (on simulator it's running without any problems).

Can somebody help me ? Thanks.
Comment 1 Rolf Bjarne Kvinge [MSFT] 2016-04-04 09:48:57 UTC
It looks like you're using an API that uses UIPress:

		/Users/SID/Projects/testproject/agres/Agres/iOS/obj/iPhone/Debug/build-iphone8.1-9.3.1/mtouch-cache/registrar.m:516:124: error: unknown type name 'UIPress'
		static BOOL native_to_managed_trampoline_16 (id self, SEL _cmd, MonoMethod **managed_method_ptr, UIGestureRecognizer * p0, UIPress * p1, const char *r0, const char *r1, const char *r2, const char *r3)

and at the same time using Xcode 7.0:

		Using Xcode 7.0 found in /Applications/Xcode.app/Contents/Developer

the problem is that UIPress was introduced in iOS 9.1 (even though Apple's documentation states it was introduced in iOS 9.0, the class is nowhere to be found in the iOS 9.0 SDK).

So the fix is simple: just update your Xcode.