Hello my Friends :)

Would anyone help me understand why after installing Odoo version 11, i want to start the service i get this error:

Exception in thread odoo.service.cron.cron0:

Traceback (most recent call last):

  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner

    self.run()

  File "/usr/lib/python2.7/threading.py", line 763, in run

    self.__target(*self.__args, **self.__kwargs)

  File "/opt/odoo/odoo/service/server.py", line 242, in target

    self.cron_thread(i)

  File "/opt/odoo/odoo/service/server.py", line 216, in cron_thread

    from odoo.addons.base.ir.ir_cron import ir_cron

  File "/opt/odoo/odoo/addons/base/ir/__init__.py", line 4, in <module>

    from . import ir_model

ImportError: cannot import name ir_model

Thank you very much in advance.

Best regards.