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Two issues:

(1) It doesn't look like you're supplying the parameters to the uvc_camera node properly. Private parameters should be prefixed with an _. Try:

rosrun uvc_camera uvc_camera_node _width:=640 _height:=480 _frame:=camera _device:=/dev/video0

(2) It looks like you've picked up the ABI breakage in roslib. Try upgrading everything to the latest version:

sudo apt-get update
sudo apt-get upgrade

If apt says that there are "held packages" or "packages not upgraded" then do a sudo apt-get dist-upgrade as well.