i know this is happened already but once again the problem seam to be on the repo so here is what i found...
The update inf3 file request for an autoinstaller file of version 3.17.22
http://autoinstall.plesk.com/PSA_12.0.18/plesk-12.0.18-cos6-x86_64.inf3
<required_autoinstaller version="3.17.22" binary_directory="Parallels_Installer"/>
but in the repo for centos ? X64 there is only a 3.16.20
http://autoinstall.plesk.com/PSA_12.0.18/dist-rpm-CentOS-6-x86_64/opt/updater/
im using plesk 12.018 #52 on CentOS 6.6 X86_64
Thank you.
The update inf3 file request for an autoinstaller file of version 3.17.22
http://autoinstall.plesk.com/PSA_12.0.18/plesk-12.0.18-cos6-x86_64.inf3
<required_autoinstaller version="3.17.22" binary_directory="Parallels_Installer"/>
but in the repo for centos ? X64 there is only a 3.16.20
http://autoinstall.plesk.com/PSA_12.0.18/dist-rpm-CentOS-6-x86_64/opt/updater/
im using plesk 12.018 #52 on CentOS 6.6 X86_64
Thank you.