I get dependency errors when trying to update php on RHEL6: "php-common = 5.1.6-27.el5_5.3 is needed by (installed) php-mbstring-5.1.6-27.el5_5.3"

Issue

• Running 'yum update' results in the following error:

Running rpm_check_debug
ERROR with rpm_check_debug vs depsolve:
php-common = 5.1.6-27.el5_5.3 is needed by (installed) php-mbstring-5.1.6-27.el5_5.3.x86_64
** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
php-mbstring-5.1.6-27.el5_5.3.x86_64 has missing requires of php-common = ('0', '5.1.6', '27.el5_5.3')
Your transaction was saved, rerun it with: yum load-transaction /tmp/yum_save_tx-2012-07-30-09-20_9z3FH.yumtx