How To Fix Unexpected Token Error for NPM Package in react project, react leaflet and other packages

The error in this video is related to the latest version of react-leaflet 3.2.1. It has an issue with the nullish coalescing operator in a react-leaflet sub library @react-leaflet/core. This error can also happen with other package

Failed to compile
Module parse failed: Unexpected token (10:41)
File was processed with these loaders:
You may need an additional loader to handle the result of these loaders.
| useEffect(function updatePathOptions() {

0:00 Understand Problem
1:48 Solution

[TechnologyAndFinance]

I was stuck for 2 days and no ChatGPT or Copilot or hours of Google could resolve this. Thanks to you for making this video. Bless you!

[anushgunner]

Dude, you saved my freaking job. I was having this error for 2 days. tried many approaches downgrading node versions etc etc but, your approach worked in a blink of an eye. thanks

Module parse failed: Unexpected token (4356:31)
File was processed with these loaders:
*
You may need an additional loader to handle the result of these loaders.
| return
| }
> var getWindowFromEl = el => || window;
| function isHtmlElement(el) {
| return el instanceof

[emnul]

I'm from the future and can confirm this is still an issue lmao. Thanks for the help!

[meganadams]

This is amazing! I love how you actually explain the reasoning for each step. Definitely subscribing and keeping in tune with this

[crazyboy]

THANK YOU SO MUCH LMAO IVE GONE THROUGHT MULTIPLE WEBSITES FOR THIS SIMPLE BUG YOU ARE THE BEST!

[cempakajanuari]

When using react-script 5 it works without error. But I need to down grade for some reason. Thanks it works.

[neelpatel]

thank You so much...bro
nahut dundha per...finally ho gaya solve. thanks bro lots of thanks

[tehArgento]

Perfect, fixed my problem. thanks for the upload!

[persistent-s]

Thanks a lot for your explaination. God bless you.

[SoniaMohibi]

Thank You so much. You resolved my issue.

[hafezfhmi]

Works like a charm! Thank you for taking the time to create this video :)

[pirog-alex]

This video helped me to solve the problem with react-leaflet

[alenakazarina]

Thank you for your explanation of this error. A real time saver =)

[adivaknin]

Thanks! I was struggling like crazy to fix this :)

[radhagovindbhaktirasa]

Thankyou bro struggling it with for many days

[wkhansp]

Thank you! The best explanation aboute the problem in the web

[rsilva]

Perfect explication and solution! Works like a charm for me.

[marioneto]

I reinstalled with 'yarn' but gave an error in localstorage that stopped storing the value. Would you know why?

[ankitkapale]

I am unable to solve the same issue for mc-datepicker. Please help out..

[KamalHossain-rnox]

After doing the configuration to browserlist, it works fine in the development mode. But when I try to build the react app with this settings, it shows nothing in the production. Blank screen.