Hello,
after my Plesk update 12.5.30 Update #9 i got the following error:
Fatal error during packages installation: [u'ERROR with rpm_check_debug vs depsolve:', 'plesk-mysql-server >= 12.5.30 is needed by pp12.5.30-bootstrapper-12.5.30-cos6.build1205151023.17.x86_64', u'Please report this...