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Hello I'm facing a problem with Expo React-Native. Whenever I try to launch the iOS Simulator. I get this error:
Simulator is installed but is identified as 'com.apple.CoreSimulator.SimulatorTrampoline'; don't know what that is. Simulator not installed. Please visit https://developer.apple.com/xcode/download/ to download Xcode and the iOS simulator. If you already have the latest version of Xcode installed, you may have to run the command `sudo xcode-select -s /Applications/Xcode.app`.Screenshot of Expo Results
My NPM Version is 6.7.0 react-native-cli: 2.0.1 react-native: 0.57.1 Expo Version 2.11.9
Also I made sure my Command Line tools on Xcode is setup perfectly Xcode CommandLineTools
Finally, I also tried to run the command sudo xcode-select -s /Applications/Xcode.app
Nothing works..
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To get it running on your device. Download the Expo Client App on your iOS device, register for a free account or login. When the app starts, there is no clear way to attach to your localhost running project.
Specifying a device You can specify the device the simulator should run with the --simulator flag, followed by the device name as a string. The default is "iPhone 13" . If you wish to run your app on an iPhone SE (2nd generation), run npx react-native run-ios --simulator="iPhone SE (2nd generation)" .
Start your app by using expo start command. Type i and a or click on Run on iOS simulator and Run on Android device/emulator buttons to launch your app on devices.
No Xcode, No Android Studio With Expo, there is no need to ever worry about these tools, since you would never need them.
I had the same problem, fixed it by manually starting the simulator app before starting expo.
The app is located in /Applications/Xcode.app/Contents/Developper/Applications/Simulator.app
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