一个月我正在使用xcode并且没有问题。但是现在，当我试图对我写的东西进行测试时，我得到了这样的信息：
warning: Unable to read symbols for /Library/MobileSubstrate/MobileSubstrate.dylib (file not found). warning: No copy of MobileSubstrate.dylib found locally, reading from memory on remote device. This may slow down the debug session. warning: Unable to read symbols for /Library/Frameworks/CydiaSubstrate.framework/Libraries/SubstrateLoader.dylib (file not found). warning: No copy of SubstrateLoader.dylib found locally, reading from memory on remote device. This may slow down the debug session. warning: Unable to read symbols for /Library/MobileSubstrate/DynamicLibraries/Activator.dylib (file not found). warning: No copy of Activator.dylib found locally, reading from memory on remote device. This may slow down the debug session. Couldn't register 'application' 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.(gdb)
什么似乎是问题？
谢谢！