Trying to use with Parcel getting Unknown plugin dev-expression

[grillorafael]

Dependencies:

   "autoprefixer": "^7.2.1",
    "babel-preset-react-app": "^3.1.0",
    "leaflet": "^1.2.0",
    "node-sass": "^4.7.2",
    "parcel-bundler": "^1.2.1",
    "react": "^16.2.0",
    "react-dom": "^16.2.0",
    "react-leaflet": "^1.7.8",
    "react-router-dom": "^4.2.2"

Error:

🚨  /home/rafael/Projects/scala/geodb/map_website/new/node_modules/react-leaflet/lib/index.js: Unknown plugin "dev-expression" specified in "/home/rafael/Projects/scala/geodb/map_website/new/node_modules/react-leaflet/.babelrc"     at /home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/options/option-manager.js:180:17
    at Array.map (<anonymous>)
    at Function.normalisePlugins (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/options/option-manager.js:158:20)
    at OptionManager.mergeOptions (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/options/option-manager.js:234:36)
    at OptionManager.init (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/options/option-manager.js:368:12)
    at File.initOptions (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/index.js:212:65)
    at new File (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/babel-core/lib/transformation/file/index.js:135:24)
    at JSAsset.getParserOptions (/home/rafael/Projects/scala/geodb/map_website/new/node_modules/parcel-bundler/src/assets/JSAsset.js:55:20)
    at <anonymous>

[grillorafael]

{
  "presets": ["react-app", "stage-1"],
  "plugins": ["dev-expression", "lodash", "transform-proto-to-assign"]
}

Adding stage-1 and all those plugins seems to make it work

[dskgry]

Also happens when working with webpack as soon as the node_modules folder is not excluded from the babel-loader rule.

module: { 
            rules: [
                {
                    test: /\.js$/,
                    exclude: /(node_modules)/,      <--- removing this line will cause the same error.
                    use: [{
                        loader: 'babel-loader',
                    }]
                },
            ]
}

[PaulLeCam]

If you want to compile this library you'll need to install the dependencies, but you're likely better off using the compiled files unless you have a specific need to use the sources.