npm run dev命令不能使用下列配置

Question

我的第一个TDD项目遵循以下教程:https://medium.com/developer-circles-lusaka/how-to-write-an-express-js-server-using-test-drived-development-921DC55AEC07

我已经安装了所有必需的依赖项，我的package.json文件如下所示。

{
  "name": "lms_webapi",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "babel src -d dist --source-maps",
    "serve": "NODE_ENV=production node dist/index.js",
    "start": "NODE_ENV=development babel-node src/index.js",
    "dev": "DEBUG=server:debug NODE_ENV=development nodemon src/index.js --exec babel-node",
    "test": "DEBUG=server:debug NODE_ENV=test mocha --require babel-core/register --reporter spec --exit   tests/ --exec babel-node",
    "test:watch": "DEBUG=server:debug NODE_ENV=development mocha  --require babel-core/register --watch --reporter  spec   tests/ --exec babel-node",
    "eslint": "eslint src/**/*.js --ignore-pattern \"node_modules/\""
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "babel-cli": "^6.26.0",
    "babel-preset-node8": "^1.2.0",
    "chai": "^4.2.0",
    "config": "^3.3.1",
    "debug": "^4.1.1",
    "express": "^4.17.1",
    "mocha": "^7.1.1",
    "mongoose": "^5.9.7",
    "supertest": "^4.0.2"
  },
  "babel": {
    "presets": [
      "node8"
    ]
  },
  "engines": {
    "node": ">=8"
  },
  "eslintConfig": {
    "plugins": [
      "node"
    ],
    "extends": [
      "eslint:recommended",
      "plugin:node/recommended"
    ],
    "rules": {
      "node/no-unsupported-features/es-syntax": 0,
      "node/no-unsupported-features/es-builtins": 0
    },
    "env": {
      "node": true,
      "es6": true
    },
    "parserOptions": {
      "sourceType": "module",
      "ecmaVersion": 2018
    }
  }
}

debug=server:debug node_env=development nodemon src/index.js--exec babel-node Der命令“debug”为false或未找到。npm错误！代码ELIFECYCLE npm错误！错误1 npm错误！lms_webapi@1.0.0 dev:debug=server:debug node_env=development nodemon src/index.js--exec babel-nodenpm错误！退出状态1 npm错误！npm错误！在lms_webapi@1.0.0开发脚本中失败。npm错误！这可能不是NPM的问题。上面可能有额外的日志记录输出。

我们将非常感谢你的帮助。谢谢！

Answer 1

dev-script失败，因为它试图查找debug命令，而不是设置环境变量。这表明您可能在windows计算机上。因此，您需要按照以下方式调整env-variables的设置：

...
"scripts": {
    ...
    "dev": "set DEBUG=server:debug && set NODE_ENV=development && nodemon src/index.js --exec babel-node",
  },
...