Protected multilib versions: error 트러블슈팅(Trouble shooting) 1. Open Terminal and run following command yum distro-sync Note: distro sync can be used to upgrade/downgrade the distribution 2. Again the update was not taking place, so I ran the following command yum check It gave the list of packages that caused the problem, Something like bluez-libs-4.101-8.fc19.x86_64 is a duplicate with bluez-lib..