I have seen that sometimes breakpoints cannot be enabled in Visual Studio, they appear as empty circles, with a warning sign when enabled. This icon change is all the information VS gives.
Particularly I'm suffering that in a Windows CE 6.0 project where I cannot enable any breakpoint in any of the sub-projects or in the OS design. The target platform in this project is a Vortex x86 embedded board, I use KITL for remote debugging.
How can I retrieve more information about what is happening? Is it not possible to use breakpoints in my case?