Webpack 5不再对节点核心模块进行自动填充。 请问怎么修?
break CHANGE:默认情况下,webpack < 5用于为node.js核心模块包含polyfills。 现在情况已经不同了。验证你是否需要这个模块,并为它配置一个填充。
Webpack 5不再对节点核心模块进行自动填充。 请问怎么修?
break CHANGE:默认情况下,webpack < 5用于为node.js核心模块包含polyfills。 现在情况已经不同了。验证你是否需要这个模块,并为它配置一个填充。
当前回答
我尝试了这个https://stackoverflow.com/a/71803628/15658978解决方案,它解决了我的问题。
简单地运行以下2个命令
npm uninstall react-scripts
npm install react-scripts@4.0.3
其他回答
你想用在
const nodeExternals = require('webpack-node-externals');
在webpack.config.js中添加
target: "node",
devtool: "source-map",
externals: [nodeExternals()],
我找到了一个适合我的解决方案:
卸载webpack 删除“package-lock”。json”文件 NPM安装webpack@4.44.2——force 包括在“套餐”中。Json”文件在你的“脚本”: "脚本":{ "start": "SET NODE_OPTIONS=——openssl-legacy-provider && react-scripts start", "SET NODE_OPTIONS=——openssl-legacy-provider && react-scripts build", “test”:“react-scripts test”, "eject": "react-scripts eject" }
看起来你已经使用了默认情况下不包含在webpack构建中的path包。对我来说,像这样扩展webpack配置有帮助:
{
// rest of the webpack config
resolve: {
// ... rest of the resolve config
fallback: {
"path": require.resolve("path-browserify")
}
},
}
也可以通过npm install path-browserify——save-dev或yarn添加path-browserify——dev来安装path-browserify。
npm install assert --save
npm install buffer --save
对于任何面临类似问题的人,只需安装缺少的模块。这些模块被报告为缺失,因为它们是node.js的一部分,但也可以通过npm单独使用。
Compiled with problems:X
ERROR in ./node_modules/body-parser/lib/read.js 24:11-26
Module not found: Error: Can't resolve 'zlib' in 'E:\My Documents\work\web\mbamasala\node_modules\body-parser\lib'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/body-parser/lib/types/urlencoded.js 217:12-34
Module not found: Error: Can't resolve 'querystring' in 'E:\My Documents\work\web\mbamasala\node_modules\body-parser\lib\types'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "querystring": require.resolve("querystring-es3") }'
- install 'querystring-es3'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "querystring": false }
ERROR in ./node_modules/destroy/index.js 15:17-41
Module not found: Error: Can't resolve 'fs' in 'E:\My Documents\work\web\mbamasala\node_modules\destroy'
ERROR in ./node_modules/destroy/index.js 17:13-30
Module not found: Error: Can't resolve 'stream' in 'E:\My Documents\work\web\mbamasala\node_modules\destroy'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "stream": require.resolve("stream-browserify") }'
- install 'stream-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "stream": false }
ERROR in ./node_modules/destroy/index.js 19:11-26
Module not found: Error: Can't resolve 'zlib' in 'E:\My Documents\work\web\mbamasala\node_modules\destroy'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "zlib": require.resolve("browserify-zlib") }'
- install 'browserify-zlib'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "zlib": false }
ERROR in ./node_modules/mime-types/index.js 15:14-37
Module not found: Error: Can't resolve 'path' in 'E:\My Documents\work\web\mbamasala\node_modules\mime-types'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "path": require.resolve("path-browserify") }'
- install 'path-browserify'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "path": false }
ERROR in ./node_modules/safer-buffer/safer.js 4:13-30
Module not found: Error: Can't resolve 'buffer' in 'E:\My Documents\work\web\mbamasala\node_modules\safer-buffer'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "buffer": false }
ERROR in ./node_modules/string_decoder/node_modules/safe-buffer/index.js 4:13-30
Module not found: Error: Can't resolve 'buffer' in 'E:\My Documents\work\web\mbamasala\node_modules\string_decoder\node_modules\safe-buffer'
BREAKING CHANGE: webpack < 5 used to include polyfills for node.js core modules by default.
This is no longer the case. Verify if you need this module and configure a polyfill for it.
If you want to include a polyfill, you need to:
- add a fallback 'resolve.fallback: { "buffer": require.resolve("buffer/") }'
- install 'buffer'
If you don't want to include a polyfill, you can use an empty module like this:
resolve.fallback: { "buffer": false }
我试了很多办法,但都没有解决。 在手动搜索后,我得到了一行代码,它自动插入到我的vs code中 从body-parser导入{json} 我移开了,节省了时间。 我希望它能帮助到一些人。 谢谢。