Unable to open liblaunch_sim.dylib. Try reinstalling Xcode or the simulator
解决办法
一、找到目标文件
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib/system/host/liblaunch_sim.dylib
二、拷贝到目标地址一和目标地址二。<即对应的模拟器路径下>
目标地址一
8.1目标地址二
/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 8.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/system/host/liblaunch_sim.dylib