[Fedora-livecd-list] Error while installing the livecd-tools

I would like to install the livecd-tools on my FC6 system, but I got the following error after doing: yum --enablerepo=development --enablerepo=extras-development\ --enablerepo=livna-development --enablerepo=livna-testing\ --enablerepo=updates-testing install livecd-tools Error: Missing Dependency: python(abi) = 2.4 is needed by package libxml2-python Error: Missing Dependency: python(abi) = 2.4 is needed by package rhnlib How do I solve this problem? Lars