While Accessing Horde Webmail interface in Plesk it gives following error
Fatal error: Cannot use object of type DB_sqlite as array in D:/inetpub/vhosts/webmail/horde/lib/Horde/DataTree.php on line 656
To fix this error first go to C:/Parallels/Plesk/Additional/Php OR any Directory where Plesk PHP4 is installed and execute Following commands
C:/Parallels/Plesk/Additional/Php>pear upgrade –force pear
downloading PEAR-1.9.0.tgz …
Starting to download PEAR-1.9.0.tgz (291,634 bytes)
…………………………………………………….done: 291,634 bytes
downloading Archive_Tar-1.3.3.tgz …
Starting to download Archive_Tar-1.3.3.tgz (18,119 bytes)
…done: 18,119 bytes
upgrade ok: channel://pear.php.net/Archive_Tar-1.3.3
upgrade ok: channel://pear.php.net/PEAR-1.9.0
PEAR: Optional feature webinstaller available (PEAR’s web-based installer)
PEAR: Optional feature gtkinstaller available (PEAR’s PHP-GTK-based installer)
PEAR: Optional feature gtk2installer available (PEAR’s PHP-GTK2-based installer)
PEAR: To install optional features use “pear install pear/PEAR#featurename”C:ParallelsPleskAdditionalPhp>pear upgrade –force DB
WARNING: “pear/DB” is deprecated in favor of “pear/MDB2″
downloading DB-1.7.13.tgz …
Starting to download DB-1.7.13.tgz (132,246 bytes)
………………………..done: 132,246 bytes
upgrade ok: channel://pear.php.net/DB-1.7.13C:/Parallels/Plesk/Additional/Php>
downloading PEAR-1.9.0.tgz …
Starting to download PEAR-1.9.0.tgz (291,634 bytes)
…………………………………………………….done: 291,634 bytes
downloading Archive_Tar-1.3.3.tgz …
Starting to download Archive_Tar-1.3.3.tgz (18,119 bytes)
…done: 18,119 bytes
upgrade ok: channel://pear.php.net/Archive_Tar-1.3.3
upgrade ok: channel://pear.php.net/PEAR-1.9.0
PEAR: Optional feature webinstaller available (PEAR’s web-based installer)
PEAR: Optional feature gtkinstaller available (PEAR’s PHP-GTK-based installer)
PEAR: Optional feature gtk2installer available (PEAR’s PHP-GTK2-based installer)
PEAR: To install optional features use “pear install pear/PEAR#featurename”C:ParallelsPleskAdditionalPhp>pear upgrade –force DB
WARNING: “pear/DB” is deprecated in favor of “pear/MDB2″
downloading DB-1.7.13.tgz …
Starting to download DB-1.7.13.tgz (132,246 bytes)
………………………..done: 132,246 bytes
upgrade ok: channel://pear.php.net/DB-1.7.13C:/Parallels/Plesk/Additional/Php>
After that copy the contents of “PEAR/DB” folder to “horde/pear/Db” (where horde is installed). Restart Plesk and try to access Webmail now.
About Milind Koyande
Milind Koyande is the Senior Research Engineer and his job is to work with new technologies, specially Cloud Computing / Virtualization Technology. His past projects include Government Sector initiatives, Backup and Disaster Recovery Solutions.
Milind Koyande is the Senior Research Engineer and his job is to work with new technologies, specially Cloud Computing / Virtualization Technology. His past projects include Government Sector initiatives, Backup and Disaster Recovery Solutions. Follow him on 
