[Solution] Yum installation error Error error: protected multilib versions:

An error occurred while installing zlib:

Yum install zlib-1.2.3-29.el6.i686

Error: protected multilib versions: zlib-1.2.3-29. el6.i686! = Zlib-1.2.3-27.el6.x86_64
You cocould try using -- skip-broken to work around the problem
You cocould try running: rpm-va -- nofiles -- nodigest

Cause: multiple databases coexist and conflict

Solution: add -- setopt = protected_multilib = false after the command is executed.

Run again: Yum install zlib-1.2.3-29.el6.i686 -- setopt = protected_multilib = false

OK!