title: Problem with npm start. react. internal/modules/cjs/loader.js:883
body: <p>i cannot run server. i just made all data but there is something wrong.
  i attached code on github
  what can be wrong ?</p>
  <p><a href="https://github.com/siemacotam/project_shop" rel="nofollow noreferrer">https://github.com/siemacotam/project_shop</a></p>
  <pre><code>internal/modules/cjs/loader.js:883
    throw err;
    ^
  
  Error: Cannot find module 'webpack'
  Require stack:
  - C:\Users\Admin\Desktop\project_shop\node_modules\webpack-dev-server\bin\webpack-dev-server.js
  
  code: 'MODULE_NOT_FOUND',
    requireStack: [
      'C:\\Users\\Admin\\Desktop\\project_shop\\node_modules\\webpack-dev-server\\bin\\webpack-dev-server.js'
  </code></pre>