E: acidbase: subprocess installed post-installation script returned error exit status 1

[pintu]

Binary package hint: yelp

whenever i tried to update after downloading packages it will ask to configure acid base.when i click the forward button it shows a screen to select acid base to be used with database and i selected mysql and then click forward button then i enterd password of database administrative user then this error occurred E: acidbase: subprocess installed post-installation script returned error exit status 1

ProblemType: Bug
Architecture: i386
CheckboxSubmission: c682c90ba3ce00131bf4618d30e5aae0
CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
Date: Fri Feb 12 05:04:52 2010
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/yelp
Package: yelp 2.28.0-0ubuntu2
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-19.56-generic
SourcePackage: yelp
Uname: Linux 2.6.31-19-generic i686
XsessionErrors:
 (gnome-settings-daemon:1802): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1802): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (polkit-gnome-authentication-agent-1:1844): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (nautilus:1824): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (firefox:2014): GLib-WARNING **: g_set_prgname() called multiple times