android-Expo推送通知-错误：无法获取设备的GCM令牌

我尝试在mt应用程序上实现Expo Notification,
连线非常好,在我的上一个博览会应用中,它运作良好,但现在却不行,
可能是因为版本更新了
当我尝试博览会文档中的代码时,这是显示

Error: Couldn't get GCM token for device

这是pacage.json：

我的package.json：

{
  "name": "blabla",
  "version": "0.1.0",
  "private": true,
  "devDependencies": {
    "babel-plugin-transform-decorators-legacy": "^1.3.5",
    "jest-expo": "~27.0.0",
    "react-native-scripts": "1.14.0",
    "react-test-renderer": "16.3.1"
  },
  "main": "./node_modules/react-native-scripts/build/bin/crna-entry.js",
  "scripts": {
    "start": "react-native-scripts start",
    "eject": "react-native-scripts eject",
    "android": "react-native-scripts android",
    "ios": "react-native-scripts ios",
    "test": "jest"
  },
  "jest": {
    "preset": "jest-expo"
  },
  "dependencies": {
    "es6-symbol": "^3.1.1",
    "expo": "^29.0.0",
    "firebase": "^5.4.1",
    "mobx": "^4.3.1",
    "mobx-react": "^5.1.0",
    "react": "16.3.1",
    "react-native": "~0.55.2",
    "react-native-animatable": "^1.3.0",
    "react-native-ionicons": "^0.2.2",
    "react-native-progress": "^3.5.0",
    "react-native-simple-toast": "0.0.8",
    "react-navigation": "^2.11.0"
  }
}

解决方法:

只需使用expo start代替react-natives-scripts start来修复它即可.
如果您遇到expo-cli错误,请运行npm install expo-cli –global.

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标签：expo,react-native,push-notification,notifications,android
来源： https://codeday.me/bug/20191108/2008970.html