


Libc++abi.dylib: terminating with uncaught exception of type NSException" *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Couldn't posix_spawn: error 35' (The drive I am trying to use is called 'Backup' and has been erased to become a 'macOS Extended (Journaled)' type drive.)Īfter entering my password and waiting for about two minutes I receive this error: Sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/Backup -applicationpath /Applications/Install\ macOS\ Sierra.app

I have tried to follow these instructions but they haven't worked. I have tried to create a bootable installer for macOS Sierra to use on my MacBook Air that is broken and needs to reinstall macOS (The macOS X Lion installer that comes with the Macbook is broken and says it is unable to install additional components needed to install macOS).
