cuda 3.0 debug debug error

when compile 3.0
nvcc -g -G

and then
cuda-gdb a.out
it gives me an error like this
cuda-gdb: symbol lookup error: cuda-gdb: undefined symbol: cudbgGetAPI

what is it? how can avoid it?

i change my cuda driver and avoid this error.

I met the same problem… Would you please tell me how to fix it?

Thanks a lot.