Presumption
you are getting "Error: Protected multilib versions" when trying to install Skype using Autoplus on x64 system.Solution
"Error: Protected multilib versions: glibc-2.14.90-24.fc16.6.i686 != glibc-2.14.90-14.x86_64"This error seems to be occurred because skype is x32 bit executable but the system is x64, the "file" output says
/usr/bin/skype: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped
To solve this problem you have to install the glibc but the x32 bit, to do that, simple execute
$ sudo yum install glibc-2.14.90-24.fc16.6.i686
If you have more "Protected multilib versions" just install thier x32 version then run autoplus and install Skype.