Android 4.3 incompatible

Hello,

when I'm trying to deploy and debug an application on Android 4.3, it crashes with the following error:

07-25 10:11:49.833 D/dalvikvm( 1253): Late-enabling CheckJNI
Loaded assembly: /data/data/com.xxx.development/files/.__override__/xxx.dll
07-25 10:11:50.067 D/dalvikvm( 1253): Trying to load lib /data/app-lib/com.xxx.development-1/libmonodroid.so 0x42156a70
07-25 10:11:50.067 D/dalvikvm( 1253): Added shared lib /data/app-lib/com.xxx.development-1/libmonodroid.so 0x42156a70
07-25 10:11:50.138 W/MonoDroid-Debugger( 1253): Accepted stdout connection: 41
Loaded assembly: /data/data/com.xxx.development/files/.__override__/xxx.dll
07-25 10:11:50.903 W/libc    ( 1253): WARNING: generic atexit() called from legacy shared library
07-25 10:11:51.567 W/monodroid-gc( 1253): GREF GC Threshold: 46800
Loaded assembly: Mono.Android.Support.v4.dll [External]
Loaded assembly: Mono.Android.GoogleMaps.dll [External]
Loaded assembly: Mono.Android.dll [External]
In mgmain JNI_OnLoad
07-25 10:11:51.794 F/libc    ( 1253): bionic/libc/upstream-netbsd/libc/stdlib/bsearch.c:70: bsearch: assertion "key != NULL" failed
07-25 10:11:51.794 E/mono-rt ( 1253): Stacktrace:
07-25 10:11:51.794 E/mono-rt ( 1253): 
07-25 10:11:51.794 E/mono-rt ( 1253): 
07-25 10:11:51.794 E/mono-rt ( 1253): =================================================================
07-25 10:11:51.794 E/mono-rt ( 1253): Got a SIGSEGV while executing native code. This usually indicates
The program 'Mono' has exited with code 255 (0xff).
07-25 10:11:51.794 E/mono-rt ( 1253): used by your application.
07-25 10:11:51.794 E/mono-rt ( 1253): =================================================================
07-25 10:11:51.794 E/mono-rt ( 1253): 

I'm using Xamarin.Android, 4.8.00013 (3f1c339b) with Visual Studio 2010 on w7 64b.

My device is a Galaxy Nexus with Android 4.3 (image flashed from official Google images)