title: C# Class Diagram Dynamic Updating
body: <p>I have a class diagram in C# and to test it out I'd like to use it to generate code and then go back and edit it.  So I need to be able to go back and forth, generate code, update class diagram, rinse repeat.</p>
  
  <p>However, for some reason I was only able to generate code once.  If I try to generate code again it says "another project might exist in the same solution".  How can I get around this?  </p>
  
  <p>Also when I update the generated code I'd like it to update the class diagram.  Is that possible?</p>
  
  <p>Thank you.</p>