Yum Update Error

I'm having trouble running a yum update on my RH 6.3:

This is one of many errors:
--> Finished Dependency Resolution
Error: Package: glib2-static-2.28.8-9.el6.x86_64 (@rhel-6-server-optional-rpms)
Requires: glib2-devel = 2.28.8-9.el6
Removing: glib2-devel-2.28.8-9.el6.i686 (@rhel-6-server-rpms)
glib2-devel = 2.28.8-9.el6
Updated By: glib2-devel-2.28.8-10.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.28.8-10.el6
Available: glib2-devel-2.22.5-5.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.22.5-5.el6
Available: glib2-devel-2.22.5-6.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.22.5-6.el6
Available: glib2-devel-2.22.5-7.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.22.5-7.el6
Available: glib2-devel-2.26.1-3.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.26.1-3.el6
Available: glib2-devel-2.26.1-7.el6_5.i686 (rhel-6-server-rpms)
glib2-devel = 2.26.1-7.el6_5
Available: glib2-devel-2.28.8-4.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.28.8-4.el6
Available: glib2-devel-2.28.8-5.el6.i686 (rhel-6-server-rpms)
glib2-devel = 2.28.8-5.el6