我用react-init创建的我的RN项目工作正常，直到我做 npm install 才能让 react-native-elements 与 react-native-vector-icons 一起工作 . 我无法链接，它说我有反应本地而不是react-native-cli . 所以我卸载并反应原生并全局安装cli .

现在 npm start 告诉我，我有"The Expo SDK requires Expo to run" .

在ExpoKit instructions中它说：打开项目时，Android Studio可能会提示您升级Gradle或其他构建工具的版本，但不要这样做，因为您可能会得到意想不到的结果 . ExpoKit始终附带所有构建工具的最新支持版本 .

显然我没有听从那个建议，这是我的惩罚 . 但我该怎么办呢 . 我的项目非常复杂 .

这是有问题的 projects.json 和它的前版本 . 有什么办法可以回滚到我的工作安装吗？

{

"name": "noam",

"version": "0.0.1",

"private": true,

"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"

},

"dependencies": {

"eslint": "^4.19.1",

"expo": "^27.0.0",

"jsonloader": "^1.0.1",

"object-path": "^0.11.4",

"react": "16.3.1",

"react-native": "0.55.3",

"react-native-action-bar": "^2.0.5",

"react-native-bluetooth-status": "^1.1.3",

"react-native-checkbox": "^2.0.0",

"react-native-cli": "^2.0.1",

"react-native-collapsible": "^0.11.2",

"react-native-drawer-layout": "^2.0.0",

"react-native-elements": "^0.19.1",

"react-native-exit-app": "^1.0.0",

"react-native-material-dropdown": "^0.11.1",

"react-native-scripts": "^1.14.1",

"react-native-simple-radio-button": "^2.7.1",

"react-native-tab-view": "0.0.77",

"react-native-vector-icons": "^4.6.0",

"react-navigation": "^1.5.11",

"rn-stack-router": "^1.0.0"

},

"devDependencies": {

"babel-eslint": "^8.2.3",

"babel-jest": "22.4.3",

"babel-preset-react-native": "4.0.0",

"eslint-config-airbnb": "^16.1.0",

"eslint-plugin-import": "^2.11.0",

"eslint-plugin-jsx-a11y": "^6.0.3",

"eslint-plugin-react": "^7.8.2",

"is-arrayish": "^0.3.1",

"jest": "22.4.3",

"react-test-renderer": "16.3.1"

},

"jest": {

"preset": "react-native"

},

"rnpm": {

"assets": ["./assets/fonts/"]

}

}

旧版本已插入第23行：

"react-native-cli": "^2.0.1",

"react-native-scripts": "^1.14.1",

"babel-eslint": "^8.2.3",

新闻：如果我做了 yarn install 然后 yarn start 在loooooong等待之后"creating package..."

那么为什么会这样呢？ npm的版本问题？