title: Cannot Place User Control on Form
body: <p>I've created a C# WinForms application using VS2010. I'm new to creating user controls so I created a new user control (as part of the same project).</p>
  
  <p>When I rebuild the project, the new control appears in the toolbox. And when I drag the control from the toolbox onto a form, I get the following error.</p>
  
  <blockquote>
    <p>Failed to load toolbox item 'TagGroup'.  It will be removed from the toolbox.</p>
  </blockquote>
  
  <p>This happened the only other time I created a user control as well. I've searched the web but most answers I found seemed related to having the control in a separate assembly. (Note that I found plenty of questions with the same problem I'm having.)</p>
  
  <p>Can anyone suggest where I should look next?</p>