Plesk – 500 internal error “/usr/bin/sw-engine-cgi: undefined symbol: xmlTextReaderSetup”

October 29th, 2014 by admin Leave a reply »

When trying to visit the plesk pannel you are getting a “500 internal error”. The following applies to plesk 10 on Centos/Redhat I686.

You then try to use the bootstrapper to repair the installation, or any other command line utility and you find the following occurs:

/usr/bin/sw-engine-cgi: symbol lookup error: /usr/bin/sw-engine-cgi: undefined symbol: xmlTextReaderSetup

For more testing, ssh to the server and run

/usr/bin/sw-engine-cgi -v

You should get the result such as this

/usr/bin/sw-engine-cgi: symbol lookup error: /usr/bin/sw-engine-cgi: undefined symbol: xmlTextReaderSetup

Now find out the the version the server is, use the command “arch”

arch
i686

In order to fix the issue do the following:

#wget http://autoinstall.plesk.com/PSA_10.4.4/dist-rpm-CentOS-5-i386/contrib/sw-engine-2.3.1-201410071349.rhel5.i386.rpm
#rpm -qa | grep sw-en
sw-engine-2.3.1-201410061604.rhel5
#rpm -e sw-engine-2.3.1-201410061604.rhel5 --nodeps --justdb
#rpm -ivh sw-engine-2.3.1-201410071349.rhel5.i386.rpm
#  /usr/bin/sw-engine-cgi -v
PHP 5.3.29 (cgi-fcgi) (built: Oct  7 2014 13:49:37)
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2014 Zend Technologies

this should fix the issue, please replace sw-engine-2.3.1-2014etc… with the relevant version available from

http://autoinstall.plesk.com/PSA_10.4.4/dist-rpm-CentOS-5-i386/contrib/.

This fix should also work with other distributions

http://autoinstall.plesk.com/PSA_10.4.4/

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