Game stuck on splash screen on windows phone 8

Hi~ everyone,

We're trying to publish a game to WP8 platform. After a lot of work, we've built the VS project. Before we publish it to the real windows phone, we decide to test it on the Emulator. But strange thing happened, the game just stuck at the splash screen. In the output there is an exception:

'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded 'C:\Data\Programs{D8849EAA-9EA3-405C-8C67-03A8DC60F359}\Install\UnityEngineDelegates.winmd'. Module was built without symbols.

An exception of type 'System.TypeLoadException' occurred in Unknown Module. and wasn't handled before a managed/native boundary The thread 0xbf4 has exited with code 0 (0x0).

Any help will be very much appreciated.