Question

我运行的每个Jest测试套件都会出现此错误：

Requires Babel "^7.0.0-0", but was loaded with "6.26.3". If you are sure you have a compatible version of @babel/core, it is likely that something in your build process is loading the wrong version. Inspect the stack trace of this error to look for the first entry that doesn't mention "@babel/core" or "babel-core" to see what is calling Babel.

但是奇怪的是，仅当我尝试通过npm install安装软件包时，才会出现此错误。那是什么问题呢？我做错了什么？附言我不想使用yarn install。

这是我paskage.json的通行证，玩笑和酵素相关部分：

{
  "devDependencies": {
    "@babel/cli": "^7.2.3",
    "@babel/core": "^7.3.4",
    "@babel/plugin-proposal-class-properties": "^7.2.3",
    "@babel/plugin-proposal-decorators": "^7.2.3",
    "@babel/plugin-proposal-export-default-from": "^7.2.0",
    "@babel/plugin-proposal-export-namespace-from": "^7.2.0",
    "@babel/plugin-proposal-object-rest-spread": "^7.2.0",
    "@babel/plugin-transform-object-assign": "^7.2.0",
    "@babel/plugin-transform-runtime": "^7.2.0",
    "@babel/preset-flow": "^7.0.0",
    "babel-core": "^7.0.0-bridge.0",
    "babel-jest": "^23.6.0",
    "babel-loader": "8.0.4",
    "babel-plugin-react-docgen": "^2.0.0",
    "enzyme": "^3.8.0",
    "enzyme-adapter-react-16": "^1.7.1",
    "jest": "^23.6.0",
    "jest-enzyme": "^7.0.1",
    "jest-pnp-resolver": "1.0.1",
    "jest-resolve": "23.6.0",
  },
}

Answer 1

Jest 23不支持@ babel / core7。要么升级到支持babel 7的Jest 24，要么运行

npm install --save-dev babel-core@7.0.0-bridge.0

为jest 23加载兼容版本的babel

开玩笑的错误，需要Babel“ ^ 7.0.0-0”，但已加载“ 6.26.3”

1 个答案: