node.js - 无法从 PATH 中找到模块 'babel-preset-env' 您是说 "@babel/env"吗？

Question

Jest cli 突然停止工作，所有测试都失败了:

Cannot find module 'babel-preset-env' from '/PATH'
    - Did you mean "@babel/env"?

我确定使用 babel 6 的模块与使用 babel 7 的项目之间存在某种不兼容，但我不确定如何解决。
这是 package.json

{
  "name": "testing101",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "parcel index.html",
    "test": "jest src/*.js --watchAll",
    "nyc": "nyc ava",
    "build": "babel src/*.js -d dist"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@babel/core": "^7.4.5",
    "@babel/preset-env": "^7.4.5",
    "@types/jest": "^24.0.13",
    "jest": "^24.8.0",
    "nyc": "^14.1.1",
    "parcel-bundler": "^1.7.0"
  },
  "jest": {
    "verbose": true,
    "testURL": "http://localhost:1234/",
    "collectCoverage": true
  },
  "dependencies": {
    "axios": "^0.18.0",
    "nock": "^10.0.6"
  }
}

这是 .babelrc

{
  "presets": ["@babel/preset-env"],
  "env": {
    "test": {
      "presets": ["env"]
    }
  }
}

Answer 1

你可以通过 npm 试试

npm install --save-dev @babel/preset-env