title: How to add reference to System.Web.Optimization for MVC 5
body: <p>App_Start\BundleConfig.cs :
  The type or namespace name 'Optimization' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)</p>
  
  <p>Global.asax.cs :
  The type or namespace name 'Optimization' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)</p>
  
  <p>App_Start\BundleConfig.cs : 
  The type or namespace name 'BundleCollection' could not be found (are you missing a using directive or an assembly reference?)</p>
  
  <p>I'm getting the above errors when attempting to build solution.</p>
  
  <p>I tried this in the Package manager Console:
  (Still Build error exists)</p>
  
  <pre><code>Install-Package Microsoft.AspNet.Web.Optimization
  Attempting to resolve dependency 'Microsoft.Web.Infrastructure (≥ 1.0.0)'.
  Attempting to resolve dependency 'WebGrease (≥ 1.5.2)'.
  Attempting to resolve dependency 'Antlr (≥ 3.4.1.9004)'.
  Attempting to resolve dependency 'Newtonsoft.Json (≥ 5.0.4)'.
  'Microsoft.AspNet.Web.Optimization 1.1.3' already installed.
  AdminHelpDesk already has a reference to 'Microsoft.AspNet.Web.Optimization 1.1.3'.
  </code></pre>