Question

***After upgrading react native 0.55 to 0.57.5 throwing error.****

index.android.js: .plugins[0][1] must be an object, false, or undefined

Error: .plugins[0][1] must be an object, false, or undefined
    at assertPluginItem (D:\wamp64\www\js\fit\Fitspot-react\mobile\node_modules\
@babel\core\lib\config\validation\option-assertions.js:244:15)

这是我的.babelrc { “预设”：[ “模块：metro-react-native-babel预设”， “ react-native-stage-0” ]， “插件”：[ [ “转换定义”， “ scripts / defines.js” ] ] }

package.json 

    "engines": {
    "node": ">=6",
    "npm": ">=5"
  },"dependencies": {
    "@babel/core": "^7.1.6",
    "@babel/preset-env": "^7.1.6",
    "@babel/preset-react": "^7.0.0",
    "analytics-react-native": "1.2.0",
    "babel-preset-env": "^7.0.0-beta.3",
    "react": "16.6.3",
    "react-native": "^0.57.5",
      ...
  },"devDependencies": {
    "@babel/plugin-external-helpers": "^7.0.0",
    "@babel/plugin-transform-runtime": "7.0.0",
    "@babel/preset-env": "^7.1.6",
    "babel-core": "7.0.0-bridge.0", 
     .....
  }`


defines.js


    const process = require('process');
    const NODE_ENV = process.env.NODE_ENV;
    let SERVER_ENV = process.env.SERVER_ENV || 'development';

    if (NODE_ENV === 'production') {
      SERVER_ENV = 'production';
    }

    module.exports = {  
       'env.configFilename': '@config/config.' + SERVER_ENV
    };

将本机0.55升级到0.57.5后，出现此错误。另外，更新其依赖关系babel7。看来babel 7升级引起了问题，但我无法解决此问题。

升级后，React本机0.55到0.57.5抛出错误

0 个答案: