title: csproj error when transfer a project in vs 2013
body: <p>i developed a project in vs2013 and i want to work with this app in another computer with vs 2013 but when i copy project and open it in this computer my project don't load and show me this error</p>
  
  <p>C:\Users\asus\Documents\Visual Studio 2013\Projects\Projectname\Projectname.csproj : error  : The imported project "C:\Program Files (x86)\MSBuild\Microsoft\MicrosoftAjax\ajaxmin.tasks" was not found. Confirm that the path in the  declaration is correct, and that the file exists on disk.  C:\Users\asus\Documents\Visual Studio 2013\Projects\Projectname\Projectname.csproj</p>
  
  <p>the propertygroup in csproj file is </p>
  
  <pre><code> &lt;PropertyGroup&gt;
  &lt;VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''"&gt;10.0&lt;/VisualStudioVersion&gt;
  &lt;VSToolsPath Condition="'$(VSToolsPath)' == ''"&gt;$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)&lt;/VSToolsPath&gt;
  </code></pre>
  
  <p></p>
  
  <p>i changed version from 10 to 12 or 13 but also i see error</p>