我的反应应用程序是使用创建反应应用程序https://reactjs.org/docs/create-a-new-react-app.html构建的,无法启动。
当我执行npm run start
时,我的应用程序挂起并显示以下消息。
正在启动开发服务器...
package.json
{
"name": "frontend",
"version": "0.1.0",
"private": true,
"dependencies": {
"@types/jest": "^25.1.1",
"@types/node": "^13.7.0",
"@types/react": "^16.9.19",
"@types/react-dom": "^16.9.5",
"@types/react-router-dom": "^5.1.3",
"axios": "^0.19.2",
"lodash": "^4.17.15",
"node-sass": "^4.13.1",
"npm-check-updates": "^4.0.1",
"qs": "^6.9.1",
"react": "^16.12.0",
"react-dom": "^16.12.0",
"react-router-dom": "^5.1.2",
"react-scripts": "3.3.1",
"typescript": "^3.7.5"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"@semantic-release/gitlab": "^6.0.2",
"semantic-release": "^17.0.2"
},
"release": {
"branch": "master",
"plugins": [
"@semantic-release/commit-analyzer",
"@semantic-release/release-notes-generator",
[
"@semantic-release/gitlab",
{
"gitlabUrl": "https://git.companyname.com"
}
]
]
}
}
节点版本:v12.14.1
Npm版本:6.13.4
我尝试过几次,每次失败都会创建一个新的节点进程,我知道这是因为它要求我选择其他端口。
到目前为止,我已经尝试进行以下过程而没有任何运气
rm -rf node_modules
npm install
npm start
如果使用creat-react-app创建react应用程序后自行安装了某些软件包,可能是因为其中一个已安装的软件包无法正常工作。过去,我遇到过像您这样的问题。当时,我已经安装了react-pdf软件包来显示pdf。结果,开发服务器没有启动,每当我再次运行时,它都会要求选择另一个端口。删除该软件包后,它运行良好。
所以我认为package.json中可能没有工作模块。我认为,这可能是“ qs” packagae。