我在尝试构建一个简单的NodeJS应用程序时遇到了一个错误：

即使Visual Code提示错误，我的代码也能运行。当我从import语句中删除.ts扩展名时，我得到一个错误，即无法找到该文件。
我使用的是webpack，但这些文件来自服务器。下面是我的文件夹结构：

这是我的webpack文件：

var webpack = require('webpack');
var helpers = require('./helpers');

//# Webpack Plugins
var CopyWebpackPlugin = (CopyWebpackPlugin = require('copy-webpack-plugin'), CopyWebpackPlugin.default || CopyWebpackPlugin);
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ForkCheckerPlugin = require('awesome-typescript-loader').ForkCheckerPlugin;
var ExtractTextPlugin = require('extract-text-webpack-plugin');

//# Webpack Constants
const ENV = process.env.ENV = process.env.NODE_ENV = 'development';
const HMR = helpers.hasProcessFlag('hot');
const METADATA = {
  title: 'My Application',
  baseUrl: '/',
  host: process.env.HOST || '0.0.0.0',
  port: process.env.PORT || 8080,
  ENV: ENV,
  HMR: HMR
};

//# Webpack Configuration
module.exports = {
  metadata: METADATA,

  entry: {
    'polyfills': './src/polyfills.ts',
    'vendor': './src/vendor.ts',
    'main': './src/main.ts',
  },

  resolve: {
    extensions: ['', '.ts', '.tsx', '.js', '.scss'],
    root: helpers.root('src'),
    modulesDirectories: [
      'node_modules',
      'server'
    ]
  },

  module: {
    preLoaders: [
      {
        test: /\.js$/,
        loader: 'source-map-loader',
        exclude: [
          helpers.root('node_modules/rxjs'),
          helpers.root('node_modules/@angular2-material'),
          helpers.root('node_modules/@angular')
        ]
      }

    ],

    loaders: [
      {
        test: /\.ts$/,
        loader: 'awesome-typescript-loader',
        exclude: [/\.(spec|e2e)\.ts$/]
      },
      {
        test: /\.json$/,
        loader: 'json-loader'
      },
      {
        test: /\.css$/,
        loader: 'raw-loader'
      },
      {
        test: /\.html$/,
        loader: 'raw-loader',
        exclude: [helpers.root('src/index.html')]
      },
      {
        test: /\.scss|css$/,
        loader: ExtractTextPlugin.extract({ fallbackLoader: 'style-loader', loader: 'css-loader!sass-loader' }),
        exclude: [ helpers.root('node_modules') ]
      },
      { 
        test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/, 
        loader: "url-loader?limit=10000&mimetype=application/font-woff" 
      },
      { 
        test: /\.(ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/,
        loader : 'file-loader'
      }
    ]
  },

  plugins: [

    new ForkCheckerPlugin(),
    new webpack.optimize.OccurrenceOrderPlugin(true),

    new webpack.optimize.CommonsChunkPlugin({
      name: ['polyfills', 'vendor'].reverse()
    }),

    new ExtractTextPlugin("[name].css"),

    new CopyWebpackPlugin([{
      from: 'src/assets',
      to: 'assets'
    }]),

    new HtmlWebpackPlugin({
      template: 'src/index.html',
      chunksSortMode: 'dependency'
    }),

    new webpack.ProvidePlugin({
      jQuery: 'jquery',
      $: 'jquery',
      jquery: 'jquery',
      "Tether": 'tether',
      "window.Tether": "tether"
    })

  ],
  
  node: {
    global: 'window',
    crypto: 'empty',
    module: false,
    clearImmediate: false,
    setImmediate: false
  }
};

有人能帮我吗谢谢