Error: xcrun exited with non-zero code: 2

Hello, today, my xcode has been to update. I am working with react-native and when I write "yarn start" in terminal, this message displays :

› Opening on iOS...
Error: xcrun exited with non-zero code: 2
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Unable to boot device because we cannot determine the runtime bundle.
No such file or directory

I search solving. Anybody can help me ?

Thank !

Error: xcrun exited with non-zero code: 2
 
 
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