Question

I’ve try to migrate a website in Joomla from 1.5 to 2.5 using jUpgrade but I’ve receive the “undefined migrating” error.

The files was correctly transferred, but there’s no change to the db, and when I try to log on website.com/jupgrade, I land on a page saying “please delete installation folder” and no db was transferred/created (so I have to create it manually and create menu, article, etc. wasting so much time!)

Please help. I have already tried removing folder and changing tmp to 777 permission (with chmod) and nothing changed!

**Update: 2012-07-24
Getting more information while running jupdate in debug mode:

“========== [checks]

1

========== [cleanup]

1

========== [decompress]

1

========== [install_config]

========== [install_db]

========== [undefined] [undefined]

jos-Error: Table ‘name_joomla.j25_users’ doesn’t exist SQL=INSERT
INTO j25_users
(id,name,username,email,password,usertype,block,sendEmail,registerDate,lastvisitDate,activation,params)
VALUES
(’62’,’Administrator’,’admin’,’[e-mail]’,’d7bfdb4f0aa91c9618b2969f4b91006e:jJzEVXG7VDz0u95RQu06CQPMFsxCic4e’,’Super
Administrator’,’0′,’1′,’2011-12-16 14:37:40′,’2012-07-24
13:57:43′,”,'{\”admin_language\”:\”\”,\”language\”:\”\”,\”editor\”:\”\”,\”helpsite\”:\”\”,\”timezone\”:\”UTC\”}’)
“

Answer 1

Finally working – at this point – following the 1st solution from @wiki.redcomponent.com by removing all the plugins and reinstalling another version (from 2.5.1 to 2.5.2)

“Migrating undefined” or “[undefined][undefined]”

There may come an instance where the process will get stuck while migrating data for a specific component and (with “Debug mode” enabled) an error similar to “Migrating undefined” or “[undefined][undefined]” will be displayed.

Some causes and remedies include:
a migrate_xxx.php file that is being requested for by jUpgrade is not available or accessible

(these files are stored in the {root}/administrator/components/com_jupgrade/includes/ folder, labelled “migrate_xxx.php” where “xxx” is the section of content being transferred at the time.)

To fix: uninstall and reinstall jUpgrade (to restore all required
files) and try again.Get jupgrade 2.5.2**

• The database table from which content is being transferred is corrupt or has been modified
(jUpgrade requires that no modifications have been made to any of the core tables themselves, otherwise the migration can run into problems when dealing with custom fields)

To fix:download and install a maintenance component such as “Admin
Tools!” and run a database integrity check and repair. Alternatively
the database may have to be repaired manually using “phpmyadmin” or a
similar interface. A solution for databases with custom fields is
being looked into, but for the moment those must be migrated manually,
or if they interfere with the migration, removed. (Of course a backup
should be run before any such operation.)

• The migration runs into an issue attempting to copy content over to a database which already has content (from a previous migration, failed or not).

To fix: remove all the tables created for the new Joomla! install
during the migration and run jUpgrade again.

• the Javascript which handles the migration process has run into a problem

To fix:check in the Plugin Manager to ensure that any system plugins
related to javascript libraries, apart from the “MooTools Upgrade”
plugin (which is required) has been disabled and try running jUpgrade
again. let’s give up IE and try Chrome 😉