dont know what happened

server/config/webpack/design.js

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+design.js

server/config/webpack/development.js

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+import webpack from 'webpack';
+
+const ROOT = __dirname + '/../../../';
+
+module.exports = {
+  entry: {
+    app: ROOT + 'client/app',
+    style: ROOT + 'client/style'
+  },
+  output: {
+    filename: '[name].js',
+    path: ROOT + 'client/build/development'
+  },
+  module: {
+      loaders: [
+          {
+              test: /\.scss$/,
+              loaders: ['style', 'raw', 'sass']
+          }, {
+              test: /\.css$/,
+              loaders: ['style', 'raw']
+          }, {
+            test: /\.js$/,
+            loader: 'babel'
+          }, {
+            test: /\.json$/,
+            loader: 'json-loader'
+          }
+      ]
+  },
+  sassLoader: {
+    includePaths: [ROOT + 'client', ROOT + 'node_modules']
+  },
+  plugins: [
+      new webpack.ProvidePlugin({
+          $: "jquery",
+          jQuery: "jquery",
+          "window.jQuery": "jquery"
+      }),
+      new webpack.ProvidePlugin({
+          d3: "d3",
+          "window.d3": "d3"
+      })
+  ],
+  node: {
+    fs: "empty"
+  }
+}

server/config/webpack/production.js

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+import ExtractTextPlugin from 'extract-text-webpack-plugin';
+import webpack from 'webpack';
+
+const ROOT = __dirname + '/../../../';
+
+module.exports = {
+  entry: {
+    app: ROOT + 'client/app',
+    style: ROOT + 'client/style'
+  },
+  devtool: 'source-map',
+  output: {
+    filename: '[name].min.js',
+    path: ROOT + 'client/build/production'
+  },
+  externals: {
+    jquery: "$",
+    d3: "d3"
+  },
+  module: {
+    loaders: [
+        {
+          test: /\.scss$/,
+          loader: ExtractTextPlugin.extract("style-loader", "raw-loader!sass-loader")
+        }, {
+          test: /\.css$/,
+          loader: ExtractTextPlugin.extract("style-loader", "raw-loader")
+        }, {
+          test: /\.js$/,
+          loader: 'babel'
+        }, {
+          test: /\.woff(\?v=[0-9]\.[0-9]\.[0-9])?$/,
+          loader: "url-loader?limit=10000&minetype=application/font-woff"
+        }, {
+          test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
+          loader: "file-loader"
+        }
+    ]
+  },
+  sassLoader: {
+    includePaths: [ROOT + 'client', ROOT + 'node_modules']
+  },
+  // Use the plugin to specify the resulting filename (and add needed behavior to the compiler)
+  plugins: [
+      new ExtractTextPlugin("style.min.css", {
+        allChunks: true
+      }),
+      new webpack.optimize.UglifyJsPlugin({minimize: true}),
+      new webpack.ProvidePlugin({
+          $: "jquery",
+          jQuery: "jquery",
+          "window.jQuery": "jquery"
+      })
+  ],
+  node: {
+    fs: "empty"
+  }
+};