After fresh upgrade from 7.0 to Odoo: "Skipping database as its base version is not 8.0.1.3"

[ViktorNova]

I just upgraded from 7.0 to 8 and am now getting an Internal Server Error and in the Odoo log I see many instances of "Skipping database MYDB as its base version is not 8.0.1.3"

The instructions in the readme don't say anything about upgrading/migrating, so I'll recap what my interpretation of them were:

1. Stop openerp service
2. Upgraded the database using the migration script, as described here https://doc.therp.nl/openupgrade/migrate.py.html (after the upgrade completed, I got some errors about modules not being found. I assumed that's cause I haven't upgraded to Odoo yet)
3. Following the readme, I did and apt-get upgrade, then changed 7.0 nightly to 8.0 nightly in my sources.list. Then I installed odoo through the package manager, which removed openerp. So far so good
4. Odoo didn't see any databases, so I replaced the new odoo init script with the now old OpenERP init script,changing user to "odoo" and pointing it to my old OpenERP config (did not see a migrated one anywhere, and the fresh Odoo one was too empty). I also took out my custom module directories from the config and changed the username to "odoo". The service started fine
5. Back to the web interface, I am asked to select from MYDB or MYDB_migrated. I select the migrated one, and instantly get the 500 internal server error

Did I do something wrong?

[pedrobaeza]

It seems that the migration hasn't been completed or even started, but we need to see the full log of the migration for knowing which is the reason.

[ViktorNova]

Oh, interesting. I restored from a container backup to do a fresh attempt, only this time I upgraded to Odoo through the package manager first, and this time I got no errors on the console output of migration script, but am getting the same error when I try to start Odoo with the migrated(?) database. Here is the whole migration log:

cat /var/tmp/openupgrade/migration.log 
2014-12-12 01:44:25,697 24913 INFO ? openerp: OpenERP version 8.0
2014-12-12 01:44:25,697 24913 INFO ? openerp: addons paths: ['/home/it/.local/share/Odoo/addons/8.0', u'/var/tmp/openupgrade/8.0/server/openerp/addons', u'/var/tmp/openupgrade/8.0/addons']
2014-12-12 01:44:25,697 24913 INFO ? openerp: database hostname: localhost
2014-12-12 01:44:25,697 24913 INFO ? openerp: database port: 5432
2014-12-12 01:44:25,697 24913 INFO ? openerp: database user: openerp
2014-12-12 01:44:25,913 24913 INFO MYCOMPANY_migrated openerp.modules.loading: loading 1 modules...
2014-12-12 01:44:25,917 24913 ERROR MYCOMPANY_migrated openerp.modules.migration: module base: Unable to load pre-migration file base/migrations/8.0.1.3/pre-migration.py
Traceback (most recent call last):
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/migration.py", line 167, in migrate_module
    mod = imp.load_module(name, fp, pathname, ('.py', 'r', imp.PY_SOURCE))
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/base/migrations/8.0.1.3/pre-migration.py", line 24, in <module>
    from openerp.addons.openupgrade_records.lib import apriori
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/module.py", line 77, in load_module
    mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/__init__.py", line 1, in <module>
    import model
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/model/__init__.py", line 2, in <module>
    import comparison_config
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/model/comparison_config.py", line 26, in <module>
    import openerplib
ImportError: No module named openerplib
2014-12-12 01:44:25,917 24913 CRITICAL MYCOMPANY_migrated openerp.service.server: Failed to initialize database `MYCOMPANY_migrated`.
Traceback (most recent call last):
  File "/var/tmp/openupgrade/8.0/server/openerp/service/server.py", line 901, in preload_registries
    registry = RegistryManager.new(dbname, update_module=update_module)
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/registry.py", line 324, in new
    openerp.modules.load_modules(registry._db, force_demo, status, update_module)
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/loading.py", line 337, in load_modules
    loaded_modules, processed_modules = load_module_graph(cr, graph, status, perform_checks=update_module, report=report, upg_registry=upg_registry)
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/loading.py", line 162, in load_module_graph
    migrations.migrate_module(package, 'pre')
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/migration.py", line 167, in migrate_module
    mod = imp.load_module(name, fp, pathname, ('.py', 'r', imp.PY_SOURCE))
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/base/migrations/8.0.1.3/pre-migration.py", line 24, in <module>
    from openerp.addons.openupgrade_records.lib import apriori
  File "/var/tmp/openupgrade/8.0/server/openerp/modules/module.py", line 77, in load_module
    mod = imp.load_module('openerp.addons.' + module_part, f, path, descr)
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/__init__.py", line 1, in <module>
    import model
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/model/__init__.py", line 2, in <module>
    import comparison_config
  File "/var/tmp/openupgrade/8.0/server/openerp/addons/openupgrade_records/model/comparison_config.py", line 26, in <module>
    import openerplib
ImportError: No module named openerplib
2014-12-12 01:44:25,918 24913 INFO MYCOMPANY_migrated openerp.service.server: Initiating shutdown
2014-12-12 01:44:25,918 24913 INFO MYCOMPANY_migrated openerp.service.server: Hit CTRL-C again or send a second signal to force the shutdown.

Is OpenERP supposed to be upgraded to Odoo before or after the database migration?

[ViktorNova]

It appears my problem all boils down to the error
ImportError: No module named openerplib

I am going to start a new issue and close this one as it seems like the first error I got is pretty much generic for a failed db upgrade.

[eugen-don]

For those who end up with the same error - heres the solution:

install the python module openerp-client-lib (1.1.2) with this command:

apt-get install python-pip
pip install openerp-client-lib