title: Breakpoints cannot be set and have been disabled
body: <p>If I add a breakpoint in a VC++ 6.0 project and then I start debugging, it displays this error message:</p>
  
  <blockquote>
    <p>One or more breakpoints cannot be set and have been disabled ,
    Execution will stop at the beginning of the program</p>
  </blockquote>
  
  <p>and it shows the disassembly window. What kind of problem is this?</p>
  
  <p>How can I add a breakpoint and start the debugging?</p>