Log :-
2015-09-29 17:23:41:860 - info: [debug] The following desired capabilities were provided, but not recognized by appium. They will be passed on to any other services running on this server. : processArguments
2015-09-29 17:23:41:861 - info: [debug] Using local app from desired caps:
I also face the problem.
Though it pass to instruments, the format is incorrect.
Appium add quote marks for arguments, leading to unexpected behavior.