Symptoms
- Various Plesk extensions are malfunctioning:
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Laravel Toolkit: Unable to install the extension or scan instances with already installed extension
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PHP Composer: Unable to scan for applications or install dependencies
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Git: Unable to open the extension or perform any actions in it
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WP Toolkit: Various actions fail
with one of the following error messages:
ERR [panel] XML-RPC: Request is invalid. Error in line 74: local complex type: The content model is not determinist.
ERR [extension/dnssec] pm_Exception: Parser error: Request is invalid. Error in line 74: local complex type: The content model is not determinist.
-
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ImunifyAV extension shows this error in Plesk:
Error: ImunifyAV requires PHP version 7.0 - 8.0. Currently, we cannot find any suitable PHP version on your server to run scripts. Please, configure it in the Settings of Plesk panel.
Cause
The packages libxml2-2.12.1-1.0.cf.rhel7.x86_64, libcurl-8.2.1-4.0.cf.rhel7.x86_64 and python2-libxml2-2.12.1-1.0.cf.rhel7.x86_64 have been updated from a custom repository CityFan. These packages are not supported by Plesk.
Resolution
Downgrade the packages to a supported version that comes from default OS .
-
For safety reasons, create a snapshot of the server
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Connect to the Plesk server via SSH
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List the yum operations related to the mentioned packages, e.g.:
# yum history list libxml2
Loaded plugins: fastestmirror, priorities
ID | Login user | Date and time | Action(s) | Altered
-------------------------------------------------------------------------------
578 | root <root> | 2023-12-02 16:47 | I, O, U | 54
2 | 1000 | 2022-06-16 09:43 | I, U | 5
1 | System <unset> | 2022-06-16 09:36 | Install | 252
history list# yum history list python2-libxml2
Loaded plugins: fastestmirror, priorities
ID | Command line | Date and time | Action(s) | Altered
-------------------------------------------------------------------------------
578 | update | 2023-12-02 16:47 | I, O, U | 54
history list -
Undo the update using the ID:
# yum history undo 578
If yum history undo operation fails, try:
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Disable CityFan repos:
# grep -Ril city-fan /etc/yum.repos.d/ |xargs -i mv {} ~
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Download packages from epel/updates:
# mkdir ~/epelXml && cd ~/epelXml
# yum makecache
# curl -LO http://mirror.centos.org/centos/7/os/x86_64/Packages/libxslt-1.1.28-6.el7.x86_64.rpm
# curl -LO http://mirror.centos.org/centos/7/updates/x86_64/Packages/libxml2-2.9.1-6.el7_9.6.x86_64.rpm
# curl -LO http://mirror.centos.org/centos/7/os/x86_64/Packages/libcurl-7.29.0-59.el7.x86_64.rpm
# curl -LO http://mirror.centos.org/centos/7/updates/x86_64/Packages/libxml2-python-2.9.1-6.el7_9.6.x86_64.rpm -
Remove the packages installed from CityFan repo:
# printf "libxml2npython2-libxml2nlibxsltn" |xargs -i rpm -e --nodeps {}
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Manually install the downloaded packages from epel/updates(
libxml2,libxml2-python,libxslt):# ls |xargs -i rpm -ivh {}
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Restart the Plesk services:
# service sw-cp-server restart && service sw-engine restart