Just make sure to replace Xcode.app with the version you want to use - perhaps sudo xcode-select -s /Applications/Xcode\ 9.app/ instead.
$ sudo xcode-select -s /Applications/Xcode.app/ There’s a simple solution - run the following in Terminal: “Error returned in reply: Connection Invalid. If builds are failing in Xcode 9, for example, due to the following: Use xcode-select on the command line whenever you need to switch between versions. Name the older version Xcode 8.3.3 or whatever you likeĭrag the Xcode 8.3.3.app to /Applications Go to to download the older version of Xcode you need and extract the archive. Install the latest version of Xcode from the App Store.You’ll just need to use xcode-select on the command line to switch between them whenever you go from, for example, Xcode 9 back to Xcode 8. run npx react-native run-ios -udid='AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA'.Despite what you may have heard, it is possible to have multiple versions of Xcode installed at the same time without using any special tools or apps. You can specify the device UDID returned from xcrun simctl list devices command. run npx react-native run-ios -simulator='iPhone 14 Pro (16.0)' in order to specify the iOS version. If you have multiple iOS versions installed, you also need to specify it's appropiate version. Ahora, haga clic en el botón Instalar debajo del icono Xcode. Cuando la aplicación se haya iniciado, escriba Xcode en el campo de búsqueda ubicado en la esquina superior derecha. You can check your available devices by running xcrun simctl list devices from the console. Una vez hecho, instalar XCode es simple: En el Dock, busque el ícono de la aplicación App Store y haga clic en él. The device names correspond to the list of devices available in Xcode. You’ll need Xcode version 12 or later, which can only be installed on macOS 10.15. If you wish to run your app on an iPhone SE (3rd generation), run npx react-native run-ios -simulator='iPhone SE (3rd generation)'. Before you proceed to install Xcode, you first need to verify that your macOS is up to date. You can specify the device the simulator should run with the -simulator flag, followed by the device name as a string. If everything is set up correctly, you should see your new app running in the iOS Simulator shortly.
Once you have your React Native project initialized, you can run npx react-native run-ios inside the newly created project directory.
Running On Simulator Starting the simulator
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