打破变化：WebPack＆lt; 5用于包括node.js核心模块的polyfills，默认情况下... polyfill
因此，我正在使用React.js和Firebase创建一个Instagram克隆，并在处理应用程序的文件上传部分时遇到了问题。错误读取：
“打破变化：webpack＆lt; 5用于默认情况下包括node.js核心模块的polyfills。 情况不再如此。验证是否需要此模块并为其配置多填充。
如果要包含一个polyfill，则需要：
- 添加后备'resolve.fallback：{“ querystring”：require.resolve（“ queryString-es3”）}'
- stlins nastion queryString-es3' 如果您不想包含polyfill，则可以使用这样的空模块： resolve.fallback：{“ querystring”：false}“
我对如何前进感到困惑...
So I am creating an Instagram clone using React.js and Firebase, and ran into an issue while working on the file upload portion of the app. The error read:
"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 }"
I am beyond confused on how to move forward...
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看起来“ querystring”已经被描述了，我的
npm run build命令在某个地方使用了这一行，我对此进行了评论：并使用：
查看上述错误，我尝试安装了我尝试安装的错误
npm i querystring-es3
最终，我不需要它，并卸载了同样的内容。
Looks like 'querystring' was depricated and my
npm run buildcommand is freaking out as this line was used somewhere, which I commented out:And use this instead:
Looking at the above mentioned error I tried installing
npm i querystring-es3
Eventually I didn't need that and uninstalled the same.