react-native - React Native yarn run ios/android or npm run ios/android not working（无法从 Metro bundler 获取状态）

Question

我一直在编写一个 React Native 应用程序，方法是在我的 android 设备上运行该应用程序：yarn start

我的应用程序已从 expo 中退出，但我仍在使用 expo 进行开发，并在 android 设备上使用 yarn start 它工作正常......我现在的问题是在我的 MacBook Pro 上的模拟器上运行它......

我目前没有自己的 ios 设备，因此需要通过 MacBook Pro 上的模拟器运行。我尝试通过模拟器运行 react native 应用程序：yarn run ios

但是，当我运行模拟器没有启动时，我收到以下错误：

yarn run v1.3.2
$ expo start --ios
┌─────────────────────────────────────────────────────────────────────────┐
│                                                                         │
│   There is a new version of expo-cli available (3.18.4).                │
│   You are currently using expo-cli 3.17.10                              │
│   Install expo-cli globally using the package manager of your choice;   │
│   for example: `npm install -g expo-cli` to get the latest version      │
│                                                                         │
└─────────────────────────────────────────────────────────────────────────┘
Starting project at /Users/bliss/Documents/Coder/ReactNative/EjectedExpo/JyotishEject
Expo DevTools is running at http://localhost:19002
Could not get status from Metro bundler. connect ECONNREFUSED 127.0.0.1:19001
Connecting to Metro bundler failed.
Set EXPO_DEBUG=true in your env to view the stack trace.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

然后我通过运行尝试了android版本：yarn run android我得到了同样的错误....

如何解决这个问题？

我想通过模拟器尽快开始使用 ios 版本....

我现在尝试运行：expo start -c --ios

我收到以下错误：

Error running `xcrun simctl openurl booted myapp://127.0.0.1:19000`: An error was encountered processing the command (domain=NSOSStatusErrorDomain, code=-10814):
The operation couldn’t be completed. (OSStatus error -10814.)

Error running app. Have you installed the app already using Xcode? Since you are detached you must build manually. Error: xcrun exited with non-zero code: 194
Your native app is running at myapp://192.168.100.189:19000

标签： react-nativereact-native-androidreact-native-iosmetro-bundler