!!Symbian Simulator Error:(Internal error: pc 0x0 in read in psymtab, but not in symtab.)

Hi,

I just want to debug my programming using the Symbian simulator. And this programming both run and debug perfectly yesterday. And this morning, I just modified some codes, and debug with the simulator, but catch with Error: the Internal error: pc 0×0 in read in psymtab, but not in symtab, and got the message gdb crash

Thought I cannot debug my programm today, my programm run perfectly. I don’t know why.