title: visual studio 2013, Error Code MSB4175
body: <p>I recently installed visual studios version 2013 update 4 on Windows 7, 64 bit system and tried building a project. In the process I am getting following error -</p>
  
  <blockquote>
    <p>FilesError    1   error MSB4175: The task factory "CodeTaskFactory" could
    not be loaded from the assembly "C:\Program Files
    (x86)\MSBuild\12.0\bin\Microsoft.Build.Tasks.v12.0.dll". Could not
    find file 'C:\Users\pratyush\AppData\Local\Temp\wuknqfms.dll'.</p>
  </blockquote>
  
  <p>Interestingly the dll file in AppData\local\Temp is changing each time the project is rebuild. It seems to be a random 8 character string.</p>
  
  <p>For instance If I rebuild the project, the file <code>wuknqfms.dll</code>, as in the error message, changes to - <code>fjcmnzgj.dll</code>.</p>
  
  <p>On building again it changes to  <code>imypid1e.dll</code>. And so on.</p>
  
  <p>More interestingly, older version of Visual Studios such as 2012 and 2010 are working just fine.</p>
  
  <p>I tried troubleblasting this error in following ways -
      1. reinstall Visual Studios
      2. repair Visual Studios
      3. install latest Version of .net
      4. install current msbuild tool
      5. update any updatable package as shown in nuget
      6. Google the issue and look in forums</p>
  
  <p>If you have some lead or suggestion, kindly share.</p>