title: The C# project is targeting ".Net Framework, Version =v4.5",which is not installed on this machine
body: <p>I am working on a C# project using VS 2012 installed on windows 8 this afternoon. It works well and I upload my code to TFS before I left for home.</p>
  
  <p>But when I download and open this project using VS 2012 installed on windows 7. I got the error message below. </p>
  
  <blockquote>
    <p>The C# project is targeting ".Net Framework, Version =v4.5",which is
    not installed on this machine. To proceed, select an option below.</p>
    
    <ol>
    <li>Change the target to .Net Framework 4.5. You can change back to ".Net Framework, Version=v4.5" at later time.</li>
    <li>Download the targeting pack for ".Net Framework, Version=v4.5". The project will not change.</li>
    <li>Do not load the project.</li>
    </ol>
  </blockquote>
  
  <p>I am sure I have installed .Net Framework 4.5 on my windows 7 laptop.
  Now, I cannot load my project. Any one knows how to solve this problem?</p>
  
  <p>Many thanks!</p>
  
  <p>---------------  updates--------</p>
  
  <p>For people who have the same problem:</p>
  
  <p>I uninstalled VS 2012 and .Net Framework 4.5 and re install both of them. The problem is solved. Now I can load my project.</p>