[libvirt-users] getting an error when installing LIBVIRT.

hi i am installing libvirt-0.9.12. i am getting following error: libvirtd: /usr/local/lib/libvirt.so.0: version `LIBVIRT_PRIVATE_0.9.12' not found (required by libvirtd) how to solve this one. i am installing from my repositary itself. the same package is working fine for my friend. suggest me some solutions. i googled but i have not get any related stuffs. Regards cooldharma06.