Unpacking php5-gd (from .../php5-gd_5.3.5-1ubuntu7.2_i386.deb) ...
Selecting previously deselected package libphp-pclzip.
Unpacking libphp-pclzip (from .../libphp-pclzip_2.8.2-2_all.deb) ...
Selecting previously deselected package smarty.
Unpacking smarty (from .../smarty_2.6.26-0.2ubuntu1_all.deb) ...
Selecting previously deselected package dbconfig-common.
Unpacking dbconfig-common (from .../dbconfig-common_1.8.47_all.deb) ...
Selecting previously deselected package piwigo.
Unpacking piwigo (from .../piwigo_2.1.2-3_all.deb) ...
Processing triggers for libapache2-mod-php5 ...
Action 'configtest' failed.
The Apache error log may have more information.
Your apache2 configuration is broken, so we're not restarting it for you.
Processing triggers for man-db ...
Setting up php5-gd (5.3.5-1ubuntu7.2) ...
Setting up libphp-pclzip (2.8.2-2) ...
Setting up smarty (2.6.26-0.2ubuntu1) ...
Setting up dbconfig-common (1.8.47) ...

Creating config file /etc/dbconfig-common/config with new version
Setting up piwigo (2.1.2-3) ...
Use of uninitialized value $_[1] in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 111, <GEN0> line 28.
Use of uninitialized value $_[1] in join or string at /usr/share/perl5/Debconf/DbDriver/Stack.pm line 111, <GEN0> line 35.
dbconfig-common: writing config to /etc/dbconfig-common/piwigo.conf

Creating config file /etc/dbconfig-common/piwigo.conf with new version

Creating config file /etc/piwigo/config-db.php with new version
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO).
unable to connect to mysql server.
error encountered creating user:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
dbconfig-common: piwigo configure: aborted.
dbconfig-common: flushing administrative password
dpkg: error processing piwigo (--configure):
 subprocess installed post-installation script returned error exit status 1