Can't build app on device
===

I got iOS application. It runs great on a simulator, but when i tried to run this app on device, debugger show me this:

    Couldn't register com.enaza.turbomusic with the bootstrap server. Error: unknown error code.
    This generally means that another instance of this process was already running or is hung in the debugger.(lldb) 

What's happened? How should i solve this problem?