It looks like it was a permission problem to open gnuradio-companion. If I run "sudo gnuradio-companion," it will open correctly.
Having said that, I am seeing another problem of "No module named tutorial" when running python grc flowgraphs.
On a previous computer that successfully ran the same program, I noticed that
/usr/local/lib/python2.7/dist-packages contained:
address@hidden:/usr/local/lib/python2.7/dist-packages$ ls
easy-install.pth PyYAML-3.11-py2.7-linux-x86_64.egg
future-0.15.2-py2.7.egg setuptools.pth
gnuradio thrift
grc_gnuradio thrift-0.9.3-py2.7.egg-info
osmosdr tutorial
pmt volk_modtool
PyBOMBS-2.1.0rc1-py2.7.egg
The one that I am currently using sees the module problem, and only contains the following in