I have been facing an issue where 'react-native run-ios' can not start, regardless of the simulator I add to the --simulator argument.XCode has the correct location for the 'command line tools'
I am always getting the error:Could not find iPhone X simulator
Error: Could not find iPhone X simulator at resolve (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:149:13) at new Promise (<anonymous>) at runOnSimulator (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:134:10) at Object.runIOS [as func] (/Users/eric/.../swim/node_modules/react-native/local-cli/runIOS/runIOS.js:106:12) at Promise.resolve.then (/Users/eric/.../swim/node_modules/react-native/local-cli/cliEntry.js:117:22)react-native info
> React Native Environment Info:> System:> OS: macOS 10.14.2> CPU: (12) x64 Intel(R) Core(TM) i9-8950HK CPU @ 2.90GHz> Memory: 6.76 GB / 32.00 GB> Shell: 3.2.57 - /bin/bash> Binaries:> Node: 10.15.0 - /usr/local/bin/node> Yarn: 1.13.0 - /usr/local/bin/yarn> npm: 6.4.1 - /usr/local/bin/npm> SDKs:> iOS SDK:> Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1> IDEs:> Android Studio: 3.1 AI-173.4819257> Xcode: 10.1/10B61 - /usr/bin/xcodebuild> npmPackages:> react: 16.6.3 => 16.6.3 > react-native: 0.57.8 => 0.57.8 > npmGlobalPackages:> create-react-native-app: 1.0.0> react-native-cli: 2.0.1> react-native-git-upgrade: 0.2.7