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I am receiving the Error message below when trying to compile my iOS app (for iPhone as well as iPhoneSimulator).
/Users/christianseiler/Developer/ETCS/iOS/MTOUCH: Error MT4109: Failed to compile the generated registrar code. Please file a bug report at http://bugzilla.xamarin.com (MT4109) (ETCS.iOS)
=== Visual Studio Community 2017 for Mac (Preview) ===
Version 7.2 Preview (7.2 build 583)
Installation UUID: 9cf08c9e-ecdc-4432-9467-cdc387f7a203
Mono 22.214.171.124 (2017-06/1afb931de69) (64-bit)
GTK+ 2.24.23 (Raleigh theme)
Package version: 504000174
=== NuGet ===
=== .NET Core ===
Runtime Version: 1.0.1
SDK Version: 1.0.0-preview2-003131
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/5.4.0/lib/mono/msbuild/15.0/bin/Sdks
=== Xamarin.Profiler ===
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler
=== Apple Developer Tools ===
Xcode 9.0 (13247)
=== Xamarin.iOS ===
Version: 10.14.0.26 (Visual Studio Community)
Build date: 2017-08-25 17:30:05-0400
=== Xamarin.Mac ===
Version: 126.96.36.199 (Visual Studio Community)
=== Xamarin.Android ===
Version: 188.8.131.52 (Visual Studio Community)
Android SDK: /Users/christianseiler/Library/Developer/Xamarin/android-sdk-macosx
Supported Android versions:
6.0 (API level 23)
7.1 (API level 25)
SDK Tools Version: 25.2.5
SDK Platform Tools Version: 25.0.5
SDK Build Tools Version: 25.0.3
Java SDK: /usr
java version "1.8.0_101"
Java(TM) SE Runtime Environment (build 1.8.0_101-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.101-b13, mixed mode)
Android Designer EPL code available here:
=== Xamarin Inspector ===
Build date: Thu, 14 Sep 2017 21:21:26 GMT
Client compatibility: 1
=== Build Information ===
Release ID: 702000583
Git revision: 861d3eb8f64655762b85235dde49874645208f51
Build date: 2017-09-05 15:23:48-04
Xamarin addins: 838dc0d12bdbb0407ea44b7bfd11fbe30ddac07b
Build lane: monodevelop-lion-d15-4
=== Operating System ===
Mac OS X 10.12.6
Darwin 16.7.0 Darwin Kernel Version 16.7.0
Thu Jun 15 17:36:27 PDT 2017
Thanks a lot for providing the environment information. Could you please provide the verbose logs from the build and, if possible, a small testing app?
To get full build logs just set the log verbosity to diagnostic at the following location: Preferences > Projects > Build
Getting same issue.
> Version: 10.14.0.26 (Visual Studio Community)
You need to use XI 11.0 (stable) or wait for the beta channel to offer 11.2 (to replace 10.14) in order to use Xcode 9.
The alternative is to continue using Xcode 8.3 until you are ready to upgrade.
Switched to stable worked for me.