Global symbol not in symtab

I'm getting the following error when trying to output a stack trace through GDB:

global symbol 'object' found in a.cpp ps开发者_C百科ymtab but not in symtab

What does this error mean exactly, and is it caused by my code or is it a GDB issue?

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I think it's gdb issue. Try gdb 7.0 or 7.1