title: webpack error in Cannot find module 'less'
body: <p>I'm trying to use less loader in webpack and the issues is - I've installed less loader locally, but when I try to compile everything using webpack command in bask, it prints out: "ERROR in Cannot find module 'less'". In my entry point I require some less file like </p>
  
  <pre><code>require("./less_components/style.less");
  </code></pre>
  
  <p>Here is my webpack.config file </p>
  
  <pre><code>module.exports = {
  
  entry: "./entry.js",
  
  output: {
  
      path: "./build",
  
      filename: "./bundle.js"
  
  },
  
  module: {
  
      loaders: [
  
          {test: /\.js$/, exlude: /node_modules/, loader: "babel-loader"},
  
          {test: /\.less$/, loader: "style!css!less"}
  
      ]
  }
  }
  </code></pre>
  
  <p>What's the matter and how I should fix it?</p>