模块从Webpack v1升级到v3后未发现错误

Question

我正在尝试从Webpack v1升级到v3 --我一直在跟踪官方迁移文档中的所有内容，但是在运行node client/scripts/start.js时，我仍然会遇到这些错误。我不知道如何修复它们：

  Starting dev server on port 3000...

  Failed to compile.

  Error in ./node_modules/react-dev-utils/webpackHotDevClient.js
  Module not found: Can't resolve 'ansi-html' in '/Users/me/work/-admin/node_modules/react-dev-utils'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js
  Module not found: Can't resolve 'babel' in '/Users/me/work/-admin'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'bluebird' in '/Users/me/work/-admin/client/config'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'core-js/actual' in '/Users/me/work/-admin/client/config'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./node_modules/react-dev-utils/webpackHotDevClient.js
  Module not found: Can't resolve 'html-entities' in '/Users/me/work/-admin/node_modules/react-dev-utils'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'object-assign' in '/Users/me/work/-admin/client/config'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js
  Module not found: Can't resolve 'react-hot-loader/patch' in '/Users/me/work/-admin'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'regenerator-runtime/runtime' in '/Users/me/work/-admin/client/config'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./node_modules/react-dev-utils/webpackHotDevClient.js
  Module not found: Can't resolve 'sockjs-client' in '/Users/me/work/-admin/node_modules/react-dev-utils'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./node_modules/react-dev-utils/webpackHotDevClient.js
  Module not found: Can't resolve 'strip-ansi' in '/Users/me/work/-admin/node_modules/react-dev-utils'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

  Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'whatwg-fetch' in '/Users/me/work/-admin/client/config'

  @ multi ./node_modules/react-dev-utils/webpackHotDevClient.js ./client/config/polyfills.js react-hot-loader/patch ./client/src/index.js

不过，我有这么多人。这些文件确实存在。

有人有什么想法吗？

Answer 1

您缺少依赖项或它们的坏版本

如果是节点模块中的错误，这意味着您的版本与webpack版本不兼容。这里说的是react-dev-utils和webpack玩得不好

Error in ./node_modules/react-dev-utils/webpackHotDevClient.js

如果错误在项目中的一个文件中，那么您将丢失依赖项并需要安装它。

Error in ./client/config/polyfills.js
  Module not found: Can't resolve 'whatwg-fetch'

安装它

npm i --save whatwg-fetch