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Hi Every body,
When I try to upgrade or uninstall some module i find this error (AttributeError: 'NoneType' object has no attribute '_table' ) and I am do not know the source of the errore to fixed it , please if you now this error I will thankful for your help me .
thank you so much
Hey what @ivan said is mostly the case , sometimes the database is just out of sync what you can try which works for me when i get that error is to restart your odoo server but this use -u all -d nameofdatabase to update the database.
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Do you have both _inherit and _name in your model and both are same? If so, odoo will not be able to install it unless a table named like specified in _name.
This is usually caused by a database object (Primary Key, etc.) that is no longer there. I admin that tracing it is a bit tedious. Put a logging before that error is prompted so that you can see which database object cause that problem.