React Native 0.58 Mobx 装饰器

解决方案

1. 移除babel-plugin-transform-decorators-legacy
2. npm install --save-dev @babel/plugin-proposal-decorator

.babelrc

{
    "presets": ["module:metro-react-native-babel-preset"],
    "plugins":[["@babel/plugin-proposal-decorators", { "legacy": true }]]
}

yarn add mobx  mobx-react -S

mobx@5 经常行出错 修改版本

"mobx": "4.3.1",

"mobx-react": "5.1.0",

可以正常运行

下面是package.json

{
  "name": "demo",
  "version": "0.0.1",
  "private": true,
  "scripts": {
    "start": "node node_modules/react-native/local-cli/cli.js start",
    "test": "jest"
  },
  "dependencies": {
    "mobx": "4.3.1",
    "mobx-react": "5.1.0",
    "react": "16.6.3",
    "react-native": "0.58.6"
  },
  "devDependencies": {
    "@babel/plugin-proposal-decorators": "^7.3.0",
    "babel-core": "^7.0.0-bridge.0",
    "babel-jest": "24.3.1",
    "jest": "24.3.1",
    "metro-react-native-babel-preset": "0.53.0",
    "react-test-renderer": "16.6.3"
  },
  "jest": {
    "preset": "react-native"
  }
}