在Windows系统上安装React项目时出现问题
在Windows系统上安装React项目时出现问题
提问于 2019-02-21 22:59:03
我正在尝试在Windows系统上安装React Web应用程序。它之前工作得很好，但当我重新安装我的Windows时，它就停止工作了。我已经安装了Node和Npm。
当我运行命令npm install时，它运行得很好。但是当我运行命令npm start时，它抛出了以下错误：
REACT_APP_ENV未被识别为内部或外部命令
另请参阅所附图片：
我已经尝试了很多来寻找和解决这个问题，但都没有奏效。
下面是package.json文件的内容：
{
"name": "wm-webapp",
"version": "0.1.0",
"private": true,
"dependencies": {
"axios": "^0.18.0",
"gapi-client": "0.0.3",
"libphonenumber-js": "^1.7.7",
"moment": "^2.24.0",
"node-sass": "^4.11.0",
"react": "^16.7.0",
"react-bootstrap": "^0.32.4",
"react-dates": "^18.4.1",
"react-dom": "^16.7.0",
"react-facebook-login": "^4.1.1",
"react-google-login": "^5.0.0",
"react-places-autocomplete": "^7.2.0",
"react-redux": "^5.0.7",
"react-responsive": "^6.1.1",
"react-router": "^4.3.1",
"react-router-dom": "^4.3.1",
"react-router-redux": "^5.0.0-alpha.9",
"react-scripts": "2.1.3",
"react-select": "^1.2.1",
"react-stripe-elements": "^2.0.2",
"react-table": "^6.8.6",
"react-toastify": "^4.5.2",
"redux": "^4.0.1",
"redux-devtools-extension": "^2.13.7",
"redux-form": "^8.1.0",
"redux-form-input-masks": "^1.3.0",
"redux-logger": "^3.0.6",
"redux-saga": "^1.0.0",
"redux-thunk": "^2.3.0",
"store": "^2.0.12",
"styled-components": "^4.1.3"
},
"scripts": {
"start:env": "env-cmd .env.${REACT_APP_ENV} react-scripts start",
"start": "REACT_APP_ENV=dev npm run start:env",
"start:test": "REACT_APP_ENV=test npm run start:env",
"build:env": "env-cmd .env.${REACT_APP_ENV} react-scripts build",
"build": "REACT_APP_ENV=test npm run build:env",
"build:prod": "REACT_APP_ENV=prod npm run build:env",
"test": "react-scripts test",
"eject": "react-scripts eject",
"deploy": "aws s3 cp build s3://test.washmix.com/ --recursive --profile washmix",
"format": "prettier --write --single-quote --tab-width=2 --print-width=80"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"devDependencies": {
"axios-mock-adapter": "^1.16.0",
"env-cmd": "^8.0.2",
"husky": "^1.3.1",
"prettier": "^1.16.1"
}
}回答 3
Stack Overflow用户
发布于 2019-02-22 00:05:38
您必须将package.json中的所有环境变量更改为：
Set NAME_VARIABLE=VALUE 例如：
"start": "Set REACT_APP_ENV=dev&& npm run start:env",Stack Overflow用户
发布于 2020-03-30 14:49:34
回答已经很晚了，但对于正在寻找答案的人来说..
Windows版 (cmd.exe) :
'set "REACT_APP_ENV=dev" && npm run start'适用于Windows的 (Powershell) :
'($env:REACT_APP_ENV = "dev") -and (npm start)'For Linux，macOS (Bash) :
'REACT_APP_ENV=dev npm start'您可以随时使用process.env.REACT_APP_ENV获取事物变量
Stack Overflow用户
发布于 2020-08-31 20:15:33
如果你在windows上运行，记住在命令和&&之间不要留空格。
因此，启动脚本将是：
"start-staging":"set REACT_APP_ENV=staging&&react-scripts start"
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/54810042
复制相关文章
相似问题