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Re: Migration v14 -> v16

- 20/04/2024 17:00:31
Hello Nils,

I've experienced the exact same issue before. Honestly I never did up before besides the fact that website broke the entire running instance with whichever theme you choose every time you restar the service.

Although I found out that if you create a empty database and move onto it before entering the main database, the error solves ✨ magically ✨. 

It's a pretty clumsy solution and if you are working with stuff like an IoT Box it won't work for you but for almost any use cases it does. I would love to find a better and real solution anyway.

Best regards,
José Vizcaya.

On Sat, Apr 20, 2024, 06:57 Nils Coenen | NICO SOLUTIONS - ENGINEERING & IT <> wrote:

Dear Contributors,

i am struggling with a migration. 


From 14 to 15 it went very well and smooth. After fixing some minor issues, updating Odoo 15 with  -u all is performed without any issues left.


After migrating to V16, the database is accessible without any problems. I can update all installed modules one by one by updating them from the app module. 


Anyway… When i run the update of all modules with -u all in v16 i am getting a keyerror with the dbname:


2024-04-20 10:31:48,171 44842 INFO DBNAME odoo.addons.base.models.ir_module: module website: loading translation file de for language de_DE 

2024-04-20 10:31:49,257 44842 WARNING DBNAME odoo.modules.loading: Transient module states were reset 

2024-04-20 10:31:49,258 44842 ERROR DBNAME odoo.modules.registry: Failed to load registry 

Traceback (most recent call last):

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/modules/", line 64, in __new__

    return cls.registries[db_name]

  File "<decorator-gen-8>", line 2, in __getitem__

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/tools/", line 87, in locked

    return func(inst, *args, **kwargs)

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/tools/", line 34, in __getitem__

    a = self.d[obj]

KeyError: 'DBNAME'


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/modules/", line 90, in new

    odoo.modules.load_modules(registry, force_demo, status, update_module)

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/modules/", line 484, in load_modules

    processed_modules += load_marked_modules(cr, graph,

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/modules/", line 372, in load_marked_modules

    loaded, processed = load_module_graph(

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/modules/", line 304, in load_module_graph

    module.write({'state': 'installed', 'latest_version': ver})

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/addons/website/models/", line 79, in write

    if request and request.db and request.context.get('apply_new_theme'):

  File "/Users/user/PycharmProjects/odoo/v16/odoo16env/lib/python3.8/site-packages/werkzeug/", line 348, in __getattr__

    return getattr(self._get_current_object(), name)

  File "/Users/user/PycharmProjects/odoo/v16/odoo-server/odoo/", line 1266, in context

    return self.env.context

AttributeError: 'NoneType' object has no attribute 'context'



I tried it on 2 different machines to make sure, that the enviroment is not the culprit.

Before digging deeper and deeper, i am trying to ask you if somebody knows what to do now!


Any hint is highly appreciated. 


All the best



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Nils Coenen


Phone: +49 (0)4298-4667492 



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