Attempted import error: 'default' is not exported from '../assertThisInitialized/_index.mjs'

Question

突然我的反应是应用程序抛出这个错误

./node_modules/@babel/runtime/helpers/esm/assertThisInitialized.js
Attempted import error: 'default' is not exported from '../assertThisInitialized/_index.mjs'.

早些时候它可以工作，但今天它抛出错误

package.json

"react": "^16.8.6",      
"babel-core": "^6.26.3",
"babel-eslint": "^10.0.2",
"babel-jest": "^24.8.0",
"babel-loader": "^7",
"babel-plugin-transform-runtime": "^6.23.0",
"babel-preset-es2015": "^6.24.1",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"babel-runtime": "^6.26.0",
"webpack": "^4.35.3",

Answer 1

尝试指定明确版本的 Babel 和 webpack

使用旧版本的 Babel Runtime 7.12.13 或更早版本

Answer 2

变通。双击错误文件路径以打开文件。 ./node_modules/@babel/runtime/helpers/esm/assertThisInitialized.js 文件并从路径 .

中删除 '/index.mjs'

export {default} from '../assertThisInitialized'

Answer 3

我得到了解决方案。在package.json中的决议下添加“@babel/runtime@7.5.0”强制babel-preset-react-app使用@babel/runtime@7.5.0

 "resolutions": {
    "**/@babel/runtime": "7.5.0"
  },

Attempted import error: 'default' is not exported from '../assertThisInitialized/_index.mjs'

Attempted import error: 'default' is not exported from '../assertThisInitialized/_index.mjs'

javascript

reactjs

webpack

babeljs