tried to start a new project and run into this starting my app in docker

[peterchen16]

./node_modules/@react-leaflet/core/esm/path.js 10:39
Module parse failed: Unexpected token (10:39)
You may need an appropriate loader to handle this file type.
|   useEffect(function updatePathOptions() {
|     if (props.pathOptions !== optionsRef.current) {
>       var options = props.pathOptions ?? {};
|       element.instance.setStyle(options);
|       optionsRef.current = options;

this is my package.json:

{
"name": "abc",
"version": "0.1.0",
"private": true,
"dependencies": {
"@react-leaflet/core": ">=1.0.0 <1.1.0 || ^1.1.1",
"@testing-library/jest-dom": "^5.17.0",
"@testing-library/react": "^13.4.0",
"@testing-library/user-event": "^13.5.0",
"leaflet": "^1.9.4",
"react": "^18.2.0",
"react-dom": "^18.2.0",
"react-leaflet": ">=3.1.0 <3.2.0 || ^3.2.1",
"react-scripts": "^2.1.3",
"web-vitals": "^2.1.4"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"dev-start": "docker-compose -f docker-compose.dev.yml up --build",
"dev-restart": "docker-compose -f docker-compose.dev.yml down && docker-compose -f docker-compose.dev.yml up --build"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": [
">0.2%",
"not dead",
"not op_mini all"
],
"devDependencies": {
"@babel/plugin-proposal-logical-assignment-operators": "^7.20.7",
"@babel/plugin-proposal-nullish-coalescing-operator": "^7.18.6"
}
}

[cowglow]

Have you tried updating to v4?