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我试图弄清楚如何使用这个名为simple-peer 的库，所以我设置了一个测试项目。它具有以下目录结构：

在此处输入图像描述

这是我的package.json文件的内容：

{
  "author": "Latheesan Kanesamoorthy",
  "name": "simple-peer-test",
  "version": "1.0.0",
  "description": "A simple video chat app using simple-peer using WebRTC.",
  "main": "main.js",
  "scripts": {
    "start": "nodemon ./src/server.js",
    "watch": "npx watchify ./src/main.js -o ./public/bundle.js"
  },
  "dependencies": {
    "express": "^4.17.1",
    "simple-peer": "^9.4.0",
    "socket.io": "^2.2.0"
  },
  "devDependencies": {
    "nodemon": "^1.19.1",
    "watchify": "^3.11.1"
  }
}

当我运行此命令时：npm run watch，我收到此错误：

npm 错误！缺少脚本：观看

这是我的调试日志：

0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'watch' ]
2 info using npm@6.9.0
3 info using node@v10.16.0
4 verbose stack Error: missing script: watch
4 verbose stack     at run (C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:155:19)
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:63:5
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:115:5
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:418:5
4 verbose stack     at checkBinReferences_ (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:373:45)
4 verbose stack     at final (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:416:3)
4 verbose stack     at then (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:160:5)
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:364:12
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:90:16
4 verbose stack     at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)
5 verbose cwd C:\Users\Latheesan\Desktop\simple-peer-test
6 verbose Windows_NT 10.0.17763
7 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "watch"
8 verbose node v10.16.0
9 verbose npm  v6.9.0
10 error missing script: watch
11 verbose exit [ 1, true ]

知道这里可能有什么问题吗？

我在带有 NodeJS v10.16.0 和 NPM v6.9.0 的 Windows 10 Pro (x86_64) 上。

4

1 回答 1

3

您必须将 npm-watch 添加到 packages.json

"scripts": {
    "watch": "npm-watch",
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  }

还添加

"watch": {
    "build": {
      "patterns": [
        "src"
      ],
      "extensions": "js,jsx"
    }
  }
于 2020-12-08T06:39:55.967 回答