Why won't Tibesti Screencaster install on Ubuntu 11.10?
The instructions in the PPA are:
However on closer inspection - there is not currently an oneiric repository.
Trying to download the natty .deb file and forcing an install:
This will attempt to download 110MB of libraries - looks like many Gnome2 libraries... this is the issue - the application needs to be recompiled using the Gnome3 GTK libraries.
My suggestion would be to contact the maintainer of the PPA to see if they have plans to support 11.10.