I'm going to guess that you have leftover "stuff" from a different
attempt to install Gnu Radio, because there's
 a file in /usr/bin/gnuradio-companion that is either a
symlink-to-nowhere, or it's pointing to a Python install that doesn't
exist. 

Now, normally, build-gnuradio uninstalls (via your package manager) any
existing Gnu Radio install, but if the package manager doesn't know
about some file (like the /usr/bin/gnuradio-companion) that is
apparently installed, it has no way of removing it. 

On 2015-03-17 13:33, Tianxiao Dong wrote: 

> Hello ALL,
> 
> I encountered one problem during installing GNU Radio on ubuntu 14.04 . I 
> attached the whole installation log . Could someone help me with this? Thanks 
> in advance.
> 
> I used the script from the link below to install Gnuradio :
> http://gnuradio.org/redmine/projects/gnuradio/wiki/InstallingGRFromSource#Using-the-build-gnuradio-script
> 
> Following is the log installing GNU Radio, I set the PYTHONPATH , but still 
> cannot find gnuradio companion.
> echodtx@echodtx-VirtualBox:~$ export 
> PYTHONPATH=/usr/local/lib/python2.7/dist-packages
> echodtx@echodtx-VirtualBox:~/gnuradio$ gnuradio-companion
> bash: /usr/bin/gnuradio-companion: No such file or directory
> 
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> .Installing
> Done building and installing Gnu Radio
> GRC freedesktop icons install ...Done
> Done function gnuradio_build at: di mrt 17 16:31:11 CET 2015
> Starting function rtl_build at: di mrt 17 16:31:11 CET 2015
> Building rtl-sdr...Done building rtl-sdr
> Building hackrf...Done building hackrf
> Building gr-iqbal...gr-iqbal build apparently failed
> Exiting gr-iqbal build
> Building gr-osmosdr...Done building gr-osmosdr
> Done building/installing rtl-sdr/gr-osmosdr
> Done function rtl_build at: di mrt 17 16:34:24 CET 2015
> Starting function extras at: di mrt 17 16:34:24 CET 2015
> Doing GIT checkout for extra module gr-baz
> Building extra module gr-baz
> Doing GIT checkout for extra module grextras
> Building extra module grextras
> Done function extras at: di mrt 17 16:34:38 CET 2015
> Starting function mod_groups at: di mrt 17 16:34:38 CET 2015
> Group 'usrp' already in /etc/group
> User echodtx already in group 'usrp'
> Done function mod_groups at: di mrt 17 16:34:38 CET 2015
> Starting function mod_udev at: di mrt 17 16:34:38 CET 2015
> udevd: no process found
> Done function mod_udev at: di mrt 17 16:34:39 CET 2015
> Starting function mod_sysctl at: di mrt 17 16:34:39 CET 2015
> Required updates to /etc/sysctl.conf already in place
> usrp group already has real-time scheduling privilege
> Done function mod_sysctl at: di mrt 17 16:34:39 CET 2015
> Starting function pythonpath at: di mrt 17 16:34:39 CET 2015
> 
> ************************************************************
> You should probably set your PYTHONPATH to:
> 
> /usr/local/lib/python2.7/dist-packages
> 
> Using:
> 
> export PYTHONPATH=/usr/local/lib/python2.7/dist-packages
> 
> in your .bashrc or equivalent file prior to attempting to run
> any Gnu Radio applications or Gnu Radio Companion.
> *************************************************************
> Done function pythonpath at: di mrt 17 16:34:39 CET 2015
> Done all functions at: di mrt 17 16:34:39 CET 2015
> All Done
> 
> =======================================================================
> If you have found this script useful and time-saving, consider a 
> donation to help me keep build-gnuradio, simple_ra, SIDsuite,
> meteor_detector, simple_fm_rcv, and multimode maintained and up to date.
> A simple paypal transfer to mle...@ripnet.com is all you need to do.
> ======================================================================
> Send success/fail info to sbrac.org?echodtx@echodtx-VirtualBox:~$ 
> 
> _______________________________________________
> Discuss-gnuradio mailing list
> Discuss-gnuradio@gnu.org
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio [1]
 

Links:
------
[1] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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