title: Install ASP.NET MVC 4 from the Web Platform Installer
body: <p>When I launch the installer, I see the product details of the ASP.NET MVC 4 framework.  When I click 'Install' it then gives me an Error dialog:</p>
  
  <pre><code>ASP.NET MVC 4 installer (Visual Studio 2010) is incompatible with Microsoft .NET Frameowrk 4.5
  </code></pre>
  
  <p>After I click Ok, It shows me the prerequisites page with "I Decline" and "I Accept" is grayed out and not clickable.</p>
  
  <p>The <a href="http://www.asp.net/whitepapers/mvc4-release-notes#_Toc303253805" rel="nofollow">Software Requirements</a> page says:</p>
  
  <blockquote>
    <p>The ASP.NET MVC 4 components for Visual Studio require PowerShell 2.0
    and either Visual Studio 2010 with Service Pack 1 or Visual Web
    Developer Express 2010 with Service Pack 1.</p>
  </blockquote>
  
  <p>What am I doing wrong? </p>