运行Xcode时，提示：An error was encountered while running (Domain = FBSOpenApplicationErrorDomain, Code = 4)

运行Xcode模拟器时，提示：

An error was encountered while running (Domain = FBSOpenApplicationErrorDomain, Code = 4)。



解决方案：
打开Xcode中的Open Developer Tool-->iOS Simulator，选择Simulator中的“Reset Content and Setting..”