bobby@bobby-ubuntu:~$ sudo apt-get build-dep compiz
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Could not open file /var/lib/apt/lists/download.tuxfamily.org_3v1deb_dists_feisty_eyecandy_source_Sources - open (2 No such file or directory)
bobby@bobby-ubuntu:~$