Lors de l'exécution de la commande gulp dans Laravel 5.3, l'erreur suivante se produit :

D:\wnmp\www\laravel-5-3-demo>gulp
(node:12992) fs: re-evaluating native module sources is not supported. If you are using the graceful-fs module, please update it to a more recent version.
[02:47:21] Using gulpfile D:\wnmp\www\laravel-5-3-demo\gulpfile.js
[02:47:21] Starting 'all'...
[02:47:21] Starting 'sass'...
[02:47:21] Finished 'sass' after 375 ms
[02:47:21] Starting 'webpack'...
{ [Error: ./~/babel-loader!./~/vue-loader/lib/selector.js?type=script&index=0!./resources/assets/js/components/Example.vue
Module build failed: Error: Cannot remove "babel-plugin-transform-es2015-modules-commonjs" from the plugin list.
    at Object.<anonymous> (D:\wnmp\www\laravel-5-3-demo\node_modules\babel-preset-es2015-webpack\index.js:35:11)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at D:\wnmp\www\laravel-5-3-demo\node_modules\babel-core\lib\transformation\file\options\option-manager.js:324:15
    at Array.map (native)
 @ ./resources/assets/js/components/Example.vue 2:17-130
 @ ./resources/assets/js/app.js]
  message: './~/babel-loader!./~/vue-loader/lib/selector.js?type=script&index=0!./resources/assets/js/components/Example.vue\nModule build failed: Error: Cannot remove "babel-plugin-transform-es2015-modules-commonjs" from the plugin list.\n    at Object.<anonymous> (D:\wnmp\www\laravel-5-3-demo\node_modules\babel-preset-es2015-webpack\index.js:35:11)\n    at Module._compile (module.js:541:32)\n    at Object.Module._extensions..js (module.js:550:10)\n    at Module.load (module.js:458:32)\n    at tryModuleLoad (module.js:417:12)\n    at Function.Module._load (module.js:409:3)\n    at Module.require (module.js:468:17)\n    at require (internal/module.js:20:19)\n    at D:\wnmp\www\laravel-5-3-demo\node_modules\babel-core\lib\transformation\file\options\option-manager.js:324:15\n    at Array.map (native)\n @ ./resources/assets/js/components/Example.vue 2:17-130\n @ ./resources/assets/js/app.js',
  showStack: false,
  showProperties: true,
  plugin: 'webpack-stream',
  __safety: { toString: [Function: bound ] } }

Selon ce post, https://github.com/gajus/babe...
Il existe deux solutions :
1.

npm i -D -E babel-preset-es2015@6.9.0

2.

// .babelrc
{
  "presets": [
    ["es2015", {"modules": false}]
  ]
}

Je souhaite utiliser la deuxième méthode, mais il y a deux questions :
1.Où doit être placé le fichier ? .babelrc2. Dois-je supprimer quelque chose puis le réinstaller ?