undo'npm run弹出'

Question

我正在尝试使用react CDN脚本测试我的React应用程序（使用create-react-app创建）的性能，并且我做了'npm run弹出'添加webpack外部依赖关系react和react-dom。

我这样做，很容易在的WebPack配置和<script>在index.html

...
externals: {
    react: 'React',
    'react-dom':'ReactDOM'
},
...

现在，我想将其还原到以前的状态，

我正在使用git，并且在单独的分支中进行了此实验。

我跑了git checkout master，npm start

结果很烦人

> myapp@0.18.1 start /home/code/serverSync/myapp/ui
> react-scripts start

sh: 1: react-scripts: not found

npm ERR! Linux 4.15.0-23-generic
npm ERR! argv "/usr/bin/node" "/usr/bin/npm" "start"
npm ERR! node v8.10.0
npm ERR! npm  v3.5.2
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn
npm ERR! myapp@0.18.1 start: `react-scripts start`
npm ERR! spawn ENOENT
npm ERR! 
npm ERR! Failed at the myapp@0.18.1 start script 'react-scripts start'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the myapp package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     react-scripts start
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs myapp
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls myapp
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/code/serverSync/myapp/ui/npm-debug.log

我该如何还原到master分支？

Answer 1

您可以通过重新添加react-scripts包来撤消Create React App应用程序的“弹出”操作。根据您最喜欢的包管理器来命令yarn或npm

你做了什么：

$ yarn run eject/ npm run eject 
? Are you sure you want to eject? This action is permanent. (Yes/No)Yes

现在解决方案是：-

$ rm -r scripts/  //Remove Your scripts folder 
$ rm -r config/   //Remove Your config folder
$ rm -r node_modules//  //Remove Your node_modules folder

并使用添加回反应脚本包

$ yarn add react-scripts / npm install react-scripts 

在package.json文件中，您需要将“脚本”更改为以前的状态：

"scripts": {
+    "start": "react-scripts start",                 
+    "build": "react-scripts build",                 
+    "test": "react-scripts test --env=jsdom",       
+    "eject": "react-scripts eject"                  
-    "start": "node scripts/start.js",               
-    "build": "node scripts/build.js",                
-    "test": "node scripts/test.js --env=jsdom"      
  }

现在使用以下命令安装所有依赖项：

  $ yarn install / npm install 

而且你很好走

$ yarn start / npm start

你做到了.....

Answer 2

如果您在 nowmaster分支（配置与之前相同npm run eject），请尝试以下操作。

• 删除 node_module
• npm install
• npm start