Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
Developer Community or GitHub with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
I'm using VS2013 to deploy my solution (which works fine on the Simulator) to my iPhone 5 with iOS 7.1.
Deployment fails with the following error in the output:
2>error MT4117: The registrar found a signature mismatch in the method 'Test_iOS.Controllers.ItemListController.DocumentInteractionControllerViewControllerForPreview' - the selector 'documentInteractionControllerViewControllerForPreview:' indicates the method takes 1 parameters, while the managed method has 0 parameters.
2>error MT4117: The registrar found a signature mismatch in the method 'Test_iOS.Controllers.ItemListController.DocumentInteractionControllerDidEndPreview' - the selector 'documentInteractionControllerDidEndPreview:' indicates the method takes 1 parameters, while the managed method has 0 parameters.
=== Xamarin Studio ===
Version 4.3.4 (build 0)
Installation UUID: 220dde4a-6e9c-4c80-a89e-6ef72bea0759
Mono 3.4.0 ((no/d4511ef)
GTK+ 2.24.23 (Raleigh theme)
Package version: 304000185
=== Apple Developer Tools ===
Xcode 5.1 (5084)
=== Xamarin.Mac ===
Xamarin.Mac: Not Installed
=== Xamarin.iOS ===
Version: 188.8.131.52 (Business Edition)
Build date: 2014-04-02 17:22:19-0400
=== Xamarin.Android ===
Version: 4.12.3 (Business Edition)
Android SDK: /Users/rene/Library/Developer/Xamarin/android-sdk-mac_x86
Supported Android versions:
2.1 (API level 7)
2.2 (API level 8)
2.3 (API level 10)
3.1 (API level 12)
4.0 (API level 14)
4.0.3 (API level 15)
4.3 (API level 18)
4.4 (API level 19)
Java SDK: /usr
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
=== Build Information ===
Release ID: 403040000
Git revision: e2e118a56ebf05c9f15eafbf53379bdebded727c
Build date: 2014-03-12 15:39:07-04
Xamarin addins: 9f2eb9aed862e28ca23d2d2f34e22952087e6e4c
=== Operating System ===
Mac OS X 10.9.2
Darwin imacbuero.fritz.box 13.1.0 Darwin Kernel Version 13.1.0
Thu Jan 16 19:40:37 PST 2014
That sounds like a legit error. The new registrars (in 7.2.1) will spot more errors than the old one (ObjC runtime does not complain much - even if those errors can cause much problems at runtime).
> - the selector 'documentInteractionControllerViewControllerForPreview:'
> indicates the method takes 1 parameters, while the managed method has 0
If a selector ends with a ":" then it means the ObjC runtime expects a parameter. If your managed code does not have one then there's the potential for memory corruption. That's what the registrar is telling you.
* your selector is wrong (there's no parameter and the ":" should not be there); or
* your managed method is wrong (and should have a parameter who's managed type match the native type);
Note: on device the static registrar will run at build time (scanning everything) while, on simulator, the dynamic registrar runs just-in-time (but the error remains).
You're right. I wasn't aware that there is a weak delegate being used. It had a ":" that should not be there.