load test debugging is not working

Question

I have a load test (using VS2012). The problem is that debug is not working (it just runs without hitting any breakpoints), and stack traces for exceptions are not available (it shows only "-" in the appropriate column).
Any ideas how to solve this problem?

UPD I have to remind that in .NET release configuration does contain debug information, though somewhat less detailed. Building in release config doesn't remove stack traces nor disables breakpoints.

Answer 1

The exception was inside VS load tester code itself (but reported as thrown from my code), that's why it was without stack trace, and debugging of my own code never started.