title: The Breakpoint will not currently be hit: No symbols have been loaded for this document
body: <p>I am using VS2010, and Silverlight 4.  When I run my code the debugging does not work (I get the above error on my breakpoints.</p>
  
  <p>When I clean my solution a warning comes up saying that the system cannot find the file specified (a project dll).  It is looking in the right path (..\debug), but there is no dll present.</p>
  
  <p>I started a new Silverlight 4 project, and get the same error.</p>
  
  <p>Sometime's the debugging does work (I am not sure if/what anything changed, but on one occasion I was surprised that my breakpoints worked. After changing one thing the breakpoints stopped working)</p>