無法在 IOS 模擬器上運行 ReactNative 應用程序

Question

我正在 Mac 上開發 ReactNative 應用程序。 我已經安裝了 XCode 6。我去 XCode -> Open Developer Tool -> IOS Simulator。 這將啟動一個模擬器，現在當我在 VS Code 終端上運行以下命令時

react-native run-ios   

我收到以下錯誤

info Found Xcode project "MyNewProject.xcodeproj"
Usage: simctl list [devices|devicetypes|runtimes]
error Could not parse the simulator list output. Run CLI with --verbose flag for more details.
Error: Command failed: xcrun simctl list --json devices
Usage: simctl list [devices|devicetypes|runtimes]

at checkExecSyncError (child_process.js:629:11)
at Object.execFileSync (child_process.js:647:13)
at runOnSimulator (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/index.js:129:30)
at Object.runIOS [as func] (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/@react-native-community/cli-platform-ios/build/commands/runIOS/index.js:97:12)
at Command.handleAction (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/react-native/node_modules/@react-native-community/cli/build/cliEntry.js:160:21)
at Command.listener (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/commander/index.js:315:8)
at Command.emit (events.js:198:13)
at Command.parseArgs (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/commander/index.js:651:12)
at Command.parse (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/commander/index.js:474:21)
at setupAndRun (/Users/ssi/Desktop/ReactNativeApp/MyNewProject/node_modules/react-native/node_modules/@react-native-community/cli/build/cliEntry.js:210:24)

我用谷歌搜索了很多，但找不到任何有用的東西。 任何幫助，將不勝感激

Answer 1

Xcode 6 5 歲了。 我相信 --json 已添加到 Xcode 8 或 Xcode 8 中的 simctl。如果您想使用它，您將需要來自較新 Xcode 的較新版本的 CoreSimulator。