UHD doesn't work

Hello.

I used ./build-gnuradio script. Now, when I try to run any UHD related
application I get this error:

$ uhd_fft
Traceback (most recent call last):
File “/usr/local/bin/uhd_fft”, line 25, in
from gnuradio import uhd
File
“/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/init.py”, line
129, in
_prepare_uhd_swig()
File
“/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/init.py”, line
32, in _prepare_uhd_swig
import uhd_swig
File
“/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py”, line
26, in
_uhd_swig = swig_import_helper()
File
“/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/uhd_swig.py”, line
22, in swig_import_helper
_mod = imp.load_module(’_uhd_swig’, fp, pathname, description)
ImportError:
/usr/local/lib/python2.7/dist-packages/gnuradio/uhd/_uhd_swig.so:
undefined symbol: _ZN3uhd9i2c_iface8eeprom16Ev

What can it be?