title: Visual Studio No Symbols have been loaded for this document
body: <p>I am having some trouble debugging a visual studio 2008 C++ project. When I start running it in debug, the breakpoints are disabled with the message</p>
  
  <blockquote>
    <p>The Breakpoint will not be hit. No Symbols have been loaded for this
    document.</p>
  </blockquote>
  
  <p>I have tried cleaning and rebuilding, but this doesn't make a difference. </p>
  
  <p>I also tried looking in Debug->Windows->Modules. If I right click on the module I am trying to debug and press Symbol load information it brings up a list of places it has tried to load the symbols from. The first in the list is correct and the file exists, but next to it is this error</p>
  
  <blockquote>
    <p>C:\path\to\my\symbol\Debug\MyProject.pdb: Unknown symbol handler for
    error</p>
  </blockquote>
  
  <p>Does anyone know what causes this or how to fix it?</p>