运行npm Start时，启动脚本丢失错误

当我试图用npm start命令调试我的节点应用程序时，我收到了这个错误。

Error:

npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files\\nodejs\\\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "start"
npm ERR! node v0.12.7
npm ERR! npm  v2.11.3

npm ERR! missing script: start
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\andrmoll.NORTHAMERICA\Documents\GitHub\SVIChallenge\npm-debug.log

From the debug file:

Error: missing script: start
       at run (C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:142:19)
       at C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:58:5
       at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:345:5
       at checkBinReferences_ (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:309:45)
       at final (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:343:3)
       at then (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:113:5)
       at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:300:12
       at evalmachine.<anonymous>:334:14
       at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:102:5
       at FSReqWrap.oncomplete (evalmachine.<anonymous>:95:15)

当前回答

检查包装。Json文件有“脚本”属性是否存在。如果不这样更新脚本属性

{
  "name": "csvjson",
  "version": "1.0.0",
  "description": "upload csv to json and insert it into MongoDB for a single colletion",
  "scripts": {
    "start": "node csvjson.js"
  },
  "dependencies": {
    "csvjson": "^4.3.4",
    "fs": "^0.0.1-security",
    "mongodb": "^2.2.31"
  },
  "devDependencies": {},
  "repository": {
    "type": "git",
    "url": "git+https://github.com/giturl.git"
  },
  "keywords": [
    "csv",
    "json",
    "mongodb",
    "nodejs",
    "collection",
    "import",
    "export"
  ],
  "author": "karthikeyan.a",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com/homepage/issues"
  },
  "homepage": "https://github.com/homepage#readme"
}

2017-09-01 11:03:14

其他回答

确保端口是打开的

var app = express();
app.set('port', (process.env.PORT || 5000));

诸如此类，最后你得到了这个

app.listen(app.get('port'), function() {
    console.log("Node app is running at localhost:" + app.get('port'))
});

在node js中仍然是一个新手，但这导致了更多的这种情况。

2017-03-01 12:35:54

我在第一次安装react-js时遇到了类似的问题:这几行帮助我解决了问题:

npm uninstall -g create-react-app
npm rm -g create-react-app
npm install -g create-react-app
npx create-react-app my-app

这对我来说很管用。

2021-06-16 07:19:59

如果在包中添加第二个“scripts”键，也会发生此错误。json文件。如果您只在包中留下一个“脚本”键。Json时，错误消失。

2016-01-20 09:24:43

查看一下client/package.json。你必须有这些脚本

"scripts": {
  "start": "react-scripts start",
  "build": "react-scripts build",
  "test": "react-scripts test --env=jsdom",
  "eject": "react-scripts eject"
}

2020-04-08 10:05:49

试试下面这些步骤:

NPM rm -g create-react-app NPM install -g create-react-app create-react-app my-app

这绝对有用!!

2020-07-17 08:15:42

运行npm Start时，启动脚本丢失错误

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