title: How to upgrade WinForm infragistics v12.1 to 14.1
body: <p>I have add new infragistics references version 14.1 to my references(v12.1) by using utility and so when i add references with new version than i got some errors...</p>
  
  <blockquote>
    <p>"Error 6404    The type or namespace name 'Infragistics' could not be found (are you missing a using directive or an assembly reference?  ...etc"</p>
  </blockquote>
  
  <p>it is still finding references of the old version</p>