[Swift][Xcode11]构建成功，但iOS模拟器没有启动

Question

Build succeeds, but iOS simulator does not start.

When I opened "Edit Schemes", the "Executable" setting of "Run" was "None".

I think this is the cause, but there is no "project name.app" in the options.

The following error was displayed in the simulator system log:

Failed to bootstrap path: path = /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/usr/lib/dyld_sim, error = 2: No such file or directory

Failed to bootstrap path: path = /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/CoreLocationProtobuf.framework/CoreLocationProtobuf, error = 2: No such file or directory

assertion failed: 19E242d 17E5233e: com.apple.alarm + 4116 [3A8B133A-F812-3AF3-A390-C970E8DBF8C9]: 0x0

Answer 1

I think you are using some different scheme. Go to New Scheme and add a new one. And run your project through that.

Answer 2

Try resetting your simulator in which you are trying to run. Launch the simulator, follow the below steps

Hardware -> Erase all contents and settings -> Run the app.

If it doesn't work please attach the error that you seeing on Xcode when you are trying to launch the simulator.