sudo apt-get --purge remove gnuradio
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  gnuradio*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 20.6 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 93446 files and directories currently installed.)
Removing gnuradio ...
Begin freedesktop uninstall...
Uninstall icon: 32x32
Uninstall icon: 48x48
Uninstall icon: 64x64
Uninstall icon: 128x128
Uninstall icon: 256x256
Uninstall mime type
Uninstall menu items
xdg-desktop-menu: No writable system menu directory found.
dpkg: error processing gnuradio (--purge):
 subprocess installed pre-removal script returned error exit status 3
Begin freedesktop install...
Install icon: 32x32
Install icon: 48x48
Install icon: 64x64
Install icon: 128x128
Install icon: 256x256
Install mime type
Install menu items
xdg-desktop-menu: No writable system menu directory found.
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 3
Errors were encountered while processing:
 gnuradio
E: Sub-process /usr/bin/dpkg returned an error code (1)