Installation lock package [closed]

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Hi, I'm trying to install a package (ccny_rgbd) so I can run my ccny_rgbd_tools, because I've been having problems with the nodelets in this package and was sugested that i would install and complie the ccny_rgbd package. I use the comande:

sudo apt-get install ccny_rgbd

and i get the following msg: its not possible to open file lock/var/lib/dpkg/lock - open(13:Permission Denied)

Why cant i install any packages?

(I used sudo rm var/lib/dpkg/lock so i could remove the lock but it still lock every time)