Missing libgstfarsight-0.10.so.0 library

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http://www.unix.com – Hi ! I have a problem, I upgraded to Ubuntu 12.04, but I can't start Pidgin, it outputs this error message : " pidgin: error while loading shared libraries: libgstfarsight-0.10.so.0: cannot open shared object file: No such file or directory" . I tried to install a package containing it, but I found only rpms that I can't convert to .deb for my OS. Can anyone help me? Thank you. (HowTos)