react-native - TypeError:无法读取 null 的属性“绑定”
问题描述
我有一个带有 react native @0.48.3 的现成移动应用程序,在其中我将把一个 web 应用程序与 webpack 捆绑在一起,但是在运行 webpack 时出现这个错误我猜这是版本的问题,但我找不到哪个是导致此错误:
Module build failed (from ./node_modules/babel-loader/lib/index.js):
TypeError: Cannot read property 'bindings' of null
at Scope.moveBindingTo
这是我的 package.json 文件
"dependencies": {
"react": "16.0.0-alpha.12",
"react-dom": "16.0.0-alpha.12",
"react-native": "0.48.3",
},
"devDependencies": {
"@babel/cli": "^7.0.0",
"@babel/core": "^7.0.0",
"@babel/plugin-transform-react-jsx-source": "^7.2.0",
"@babel/preset-env": "^7.4.4",
"@babel/preset-react": "^7.0.0",
"babel-core": "^7.0.0-bridge.0",
"babel-jest": "^21.0.2",
"babel-loader": "^8.0.5",
"babel-plugin-transform-es2015-block-scoping": "^6.26.0",
"babel-preset-react-native": "5.0.1",
"jest": "21.1.0",
"metro-react-native-babel-preset": "^0.47.0",
"react-test-renderer": "16.0.0-alpha.12",
"regenerator-runtime": "^0.13.2",
"url-loader": "^1.1.2",
"webpack": "^4.28.4"
},
"jest": {
"preset": "react-native"
}
这是我的 babel.config.js
module.exports = {
presets: ["module:metro-react-native-babel-preset","@babel/preset-
env"],
plugins: ["@babel/plugin-proposal-object-rest-spread","@babel/plugin-
transform-react-jsx-source","transform-es2015-block-scoping"]
};
解决方案
更新你的 package.json 脚本,确保你使用的@babel/env
不是--presets=env
上一个版本。
"scripts": {
"build": "babel ./src --out-dir ./build --presets=@babel/env",
}
这是重要的部分--presets=@babel/env
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