title: Custom component doesn't display in one of my project in visual studio 2012
body: <p>I have created a component to display and select multiple folders. I add it to the toolbox and it work perfectly in other projects but not in the project where i need it (not displayed)...</p>
  
  <p>If i add it manually i have a reference broken message. </p>
  
  <p>Intellisense find it.</p>