I am having the same issue, I tried Josh suggestion without success.
what should I do to make it work?
here is a error log containing the versions I am using:
linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.003-78-g49a4929b
<<< Welcome to GNU Radio Companion 3.6.4.1 >>>
Loading: "/home/guy/Documents/tdma_hier.grc"
>>> Done
Showing: "/home/guy/Documents/tdma_hier.grc"
Loading: "/home/guy/Documents/tdma_radio.grc"
>>> Done
Showing: "/home/guy/Documents/tdma_radio.grc"
Generating: "/home/guy/Documents/tdma_radio.py"
>>> Warning: This flow graph may not have flow control: no audio or usrp blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion.
Executing: "/home/guy/Documents/tdma_radio.py"
linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.005.003-78-g49a4929b
Traceback (most recent call last):
File "/home/guy/Documents/tdma_radio.py", line 8, in <module>
execfile("/home/guy/.grc_gnuradio/tdma_hier.py")
File "/home/guy/.grc_gnuradio/tdma_hier.py", line 14, in <module>
import gnuradio.extras as gr_extras
File "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/__init__.py", line 20, in <module>
from extras_swig import *
File "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", line 26, in <module>
_extras_swig = swig_import_helper()
File "/usr/local/lib/python2.7/dist-packages/gnuradio/extras/extras_swig.py", line 22, in swig_import_helper
_mod = imp.load_module('_extras_swig', fp, pathname, description)
ImportError: libgnuradio-extras.so: cannot open shared object file: No such file or directory
Thanks, Guy