You may need an additional loader to handle the result of these loaders.

[faisalseraj]

./node_modules/@react-leaflet/core/lib/path.js 10:41
Module parse failed: Unexpected token (10:41)
File was processed with these loaders:

• ./node_modules/react-scripts/node_modules/babel-loader/lib/index.js
  You may need an additional loader to handle the result of these loaders.
  | useEffect(function updatePathOptions() {
  | if (props.pathOptions !== optionsRef.current) {

  const options = props.pathOptions ?? {};

| element.instance.setStyle(options);
| optionsRef.current = options;

this is the error i am facing now. does anyone has any workaroung?

[danielpowell4]

I added @babel/plugin-proposal-nullish-coalescing-operator including in my babel config per stack overflow and seems to be doing the trick!

[mhzendehpey]

It is handled in another issue. I had the same problem and following this answer helped me fix this issue.