Today I'm about to purger Cinelerra

czgirb@czgirb:~$ sudo apt-get purge cinelerra
[sudo] password for czgirb:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Virtual packages like 'cinelerra' can't be removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
czgirb@czgirb:~$
Any idea?