Getting error while updating 2.5.3 to 2.5.7 - Joomla! Forum - community, help and support

while updating got problem ... joomla showing 2.5.7 , confuse if getting error how version update? (sorry bad english )

code: select all

jinstaller: :install: error sql db function failed error number 1062
duplicate entry '28' key 'primary' sql=insert `se0gx_extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) values (28, 'com_joomlaupdate', 'component', 'com_joomlaupdate', '', 1, 1, 0, 1, '{"legacy":false,"name":"com_joomlaupdate","type":"component","creationdate":"february 2012","author":"joomla! project","copyright":"(c) 2005 - 2012 open source matters. rights reserved.","authoremail":"admin@joomla.org","authorurl":"www.joomla.org","version":"2.5.2","description":"com_joomlaupdate_xml_description","group":""}', '{}', '', '', 0, '0000-00-00 00:00:00', 0, 0);
sql =
insert `#__extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) values
(28, 'com_joomlaupdate', 'component', 'com_joomlaupdate', '', 1, 1, 0, 1, '{"legacy":false,"name":"com_joomlaupdate","type":"component","creationdate":"february 2012","author":"joomla! project","copyright":"(c) 2005 - 2012 open source matters. rights reserved.","authoremail":"admin@joomla.org","authorurl":"www.joomla.org","version":"2.5.2","description":"com_joomlaupdate_xml_description","group":""}', '{}', '', '', 0, '0000-00-00 00:00:00', 0, 0);
files update: sql error file db function failed error number 1062
duplicate entry '28' key 'primary' sql=insert `se0gx_extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) values (28, 'com_joomlaupdate', 'component', 'com_joomlaupdate', '', 1, 1, 0, 1, '{"legacy":false,"name":"com_joomlaupdate","type":"component","creationdate":"february 2012","author":"joomla! project","copyright":"(c) 2005 - 2012 open source matters. rights reserved.","authoremail":"admin@joomla.org","authorurl":"www.joomla.org","version":"2.5.2","description":"com_joomlaupdate_xml_description","group":""}', '{}', '', '', 0, '0000-00-00 00:00:00', 0, 0);
sql =
insert `#__extensions` (`extension_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `custom_data`, `system_data`, `checked_out`, `checked_out_time`, `ordering`, `state`) values
(28, 'com_joomlaupdate', 'component', 'com_joomlaupdate', '', 1, 1, 0, 1, '{"legacy":false,"name":"com_joomlaupdate","type":"component","creationdate":"february 2012","author":"joomla! project","copyright":"(c) 2005 - 2012 open source matters. rights reserved.","authoremail":"admin@joomla.org","authorurl":"www.joomla.org","version":"2.5.2","description":"com_joomlaupdate_xml_description","group":""}', '{}', '', '', 0, '0000-00-00 00:00:00', 0, 0);


[mod note: moved general forum upgrade forum; ]
to you, in future, find correct forum topic please read which forum post question have put together.

1. make sure database has been updated reflect changes update(s)
   
   1. go extensions=>extension manager->database tab
   2. click fix button (top right toolbar).
2. also , make sure clear joomla cache files.
   1. go extensions=>extension manager->updates tab
   2. click purge cache
3. report outcome.