Un poco largo el título del post.
Al grano, si intentando ejecutar
ionic cordova run ios -l –external
nos da el error:
[cordova] xcodebuild: Command failed with exit code 1 Error output: [cordova] xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
lo solucionaremos con
sudo xcode-select -s /Applications/Xcode.app/Contents/Developer
Volvemos a probar
ionic cordova run ios -l –external
Y funcionando