Article ID: 5902, created on Dec 24, 2008, last review on May 11, 2014

  • Applies to:
  • Plesk 9.0 for Linux/Unix

Symptoms

Parallels Plesk Panel version 9.0.0 is installed on server based on operating system Ubuntu 6.06 with PHP 4.
Horde Webmail client is enabled and used by a domain.

The following error occurs if try to open Horde page:

Warning:  main(PEAR.php): failed to open stream: No such file or directory in /usr/share/psa-horde/lib/core.php on line 46
Warning:  main(): Failed opening 'PEAR.php' for inclusion (include_path='/usr/share/psa-horde/lib:.:') in /usr/share/psa-horde/lib/core.php on line 46
Warning:  main(Log.php): failed to open stream: No such file or directory in /usr/share/psa-horde/lib/Horde.php on line 3
Warning:  main(): Failed opening 'Log.php' for inclusion (include_path='/usr/share/psa-horde/lib:.:') in /usr/share/psa-horde/lib/Horde.php on line 3

Resolution

To resolve the problem you should replace option <IfModule sapi_apache2.c> with <IfModule mod_php4.c> in Horde Apache configuration file /etc/httpd/conf.d/zzz_horde_vhost.conf.

The problem persists for Parallels Plesk Panel 9.0.0, Ubuntu 6.06 PHP 4. It will be fixed in next patch.

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