client plugin can't find variable "Buffer"

[LiamWalsh98]

I'm having trouble launching the client plugin for theia. The below error is what I get every time I try.

[Error] Unhandled Promise Rejection: ReferenceError: Can't find variable: Buffer
	../node_modules/vscode-jsonrpc/lib/messageReader.js (bundle.js:138546)
	__webpack_require__ (bundle.js:144401)
	../node_modules/vscode-jsonrpc/lib/main.js (bundle.js:137601)
	__webpack_require__ (bundle.js:144401)
	../node_modules/vscode-ws-jsonrpc/lib/index.js (bundle.js:139429)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/common/messaging/proxy-factory.js (bundle.js:58422)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/common/messaging/index.js (bundle.js:58390)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/common/index.js (bundle.js:56999)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/browser/shell/application-shell.js (bundle.js:42569)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/browser/shell/index.js (bundle.js:44332)
	__webpack_require__ (bundle.js:144401)
	../node_modules/@theia/core/lib/browser/index.js (bundle.js:35574)
	__webpack_require__ (bundle.js:144401)
	(anonymous function) (bundle.js:1399)
	promiseReactionJob

It seems the "Buffer" variable which is in messageReader.js doesn't declare any variable of the name, which i assume is because it's run inside a webpack (i'm using the same browser-app structure as the minimal example). I can't seem to find I can't seem to find any declaration.

I came across this StackOverflow answer with a possible fix, the issue is I can't try it because the webpack.config is generated just like the gen-webpack.config is. Is there any way I can further configure the browser-app's package.json in order to give these changes a try?

Thanks

[LiamWalsh98]

In case anyone is having this issue, I managed to fix it by upgrading webpack to the latest version (5.68.0 at the time when the fix was applied).