murlidhar@slynux:~$ sudo apt-get -f install libtorrent-rasterbar2
Reading package lists... Done
Building dependency tree
Reading state information... Done
Suggested packages:
  libtorrent-rasterbar-dbg
The following NEW packages will be installed:
  libtorrent-rasterbar2
0 upgraded, 1 newly installed, 0 to remove and 10 not upgraded.
2 not fully installed or removed.
Need to get 0B/1166kB of archives.
After this operation, 3256kB of additional disk space will be used.
WARNING: The following packages cannot be authenticated!
  libtorrent-rasterbar2
Install these packages without verification [y/N]? y
Selecting previously deselected package libtorrent-rasterbar2.
(Reading database ... 122074 files and directories currently installed.)
Unpacking libtorrent-rasterbar2 (from .../libtorrent-rasterbar2_0.14.6b-0ubuntu1_i386.deb) ...
Setting up libtorrent-rasterbar2 (0.14.6b-0ubuntu1) ...

Setting up python-libtorrent (0.14.6b-0ubuntu1) ...

Setting up qbittorrent (1.5.4-0ubuntu1) ...

Processing triggers for libc6 ...
ldconfig deferred processing now taking place
Processing triggers for menu ...
murlidhar@slynux:~$ sudo apt-get remove qbittorrent
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libzzip-0-13
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  qbittorrent
0 upgraded, 0 newly installed, 1 to remove and 10 not upgraded.
After this operation, 3666kB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 122081 files and directories currently installed.)
Removing qbittorrent ...
Processing triggers for man-db ...
Processing triggers for menu ...
murlidhar@slynux:~$