致命信号11 (SIGSEGV)，代码1，故障地址0x18, tid 5091

我想在Asus_Z008D上构建我的应用程序，但我有这个问题:

[Mono] Could not load file or assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
[mono-rt] Stacktrace:
[mono-rt] 
[mono-rt] 
[mono-rt] Attempting native Android stacktrace:
[mono-rt] 
[mono-rt]  at ???+0 [0xe20ab667]
[mono-rt]  at mono_class_get_field_from_name+31 [0xe20ab73f]
[mono-rt]  at ???+31 [0xf2f7e9a2]
[mono-rt]  at ???+31 [0xf2f7ebe3]
[mono-rt]  at Java_mono_android_Runtime_init+2127 [0xf2f812b0]
[mono-rt]  at ???+2127 [0xe29dcde2]
[mono-rt] 
[mono-rt] =================================================================
[mono-rt] Got a SIGSEGV while executing native code. This usually indicates
[mono-rt] a fatal error in the mono runtime or one of the native libraries 
[mono-rt] used by your application.
[mono-rt] =================================================================
[mono-rt] 
[libc] Fatal signal 11 (SIGSEGV), code 1, fault addr 0x18 in tid 5091 (ru.roadaccident)

应用程序在启动屏幕上崩溃，主活动和启动屏幕中的断点不起作用。在其他设备上，应用程序运行得很好;我用Xamarin。Xamarin Studio中的表单;