I downloaded the code and installed everything, but still this error occurs

[Janiks05]

Failed to compile.

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

• ./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;