Error on Airprobe

Hello,

I tried to follow the instruction for airprobe from
http://srlabs.de/uncategorized/airprobe-how-to, but following error
occurred.

$ ./go_usrp2.sh vf_call6_a725_d174_g5_Kc1EF00BAB3BAC7002.cfile 174 0B >
vf_call6
Traceback (most recent call last):
File “./gsm_receive100.py”, line 12, in
import gsm
File “…/lib/gsm.py”, line 24, in
_gsm = swig_import_helper()
File “…/lib/gsm.py”, line 16, in swig_import_helper
import _gsm
ImportError:
/home/strazytski/Research/GSM_Cracking/Code/airprobe/gsm-receiver/src/lib/.libs/libgsmdemod.so.0:
undefined symbol:
_ZN15gr_msg_accepter4postEN5boost13intrusive_ptrIN3pmt8pmt_baseEEE

anyone experience with the error?

Rgds