You are getting the above message because you are starting SKYPE (and this is so far the only way to do it) with the command in a terminal:
PULSE_LATENCY_MSEC=30 LD_PRELOAD=/usr/lib/i386-linux-gnu/libv4l/v4l1compat.so skype
However, this command only works after installing the ia32-libs package that contains the v4l1compat.so file, which is possible using the following procedure:
There is a workaround using ia32-libs from a previous distribution (13.04). This has been tested with the release candidate of 13.10 and all is well and functional.
Install Synaptic from terminal window:
sudo apt-get install synaptic
Launch synaptic and goto “settings > Repositories” click “other software > add”
insert this line in the box:
deb http://archive.ubuntu.com/ubuntu/ raring main restricted universe multiverse
Click OK and close synaptic.
In terminal type:
sudo apt-get update && sudo apt-get install ia32-libs
[For more details and a technical explanation of the above see here and here ]