[Python] Django Error: 'class Meta' got invalid attribute(s): index_together

Discussão em 'Python' iniciado por Stack, Janeiro 23, 2025.

  1. Stack

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    I am working on a Django project and encountered an issue when running the python manage.py migrate command. The migration process fails with the following error:

    Traceback (most recent call last):
    File "C:\Users\dell\Desktop\Django Project GMP\GMB-Django\gmb_project\manage.py", line 22, in <module>
    main()
    File "C:\Users\dell\Desktop\Django Project GMP\GMB-Django\gmb_project\manage.py", line 18, in main
    execute_from_command_line(sys.argv)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\__init__.py", line 442, in execute_from_command_line
    utility.execute()
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\__init__.py", line 436, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\base.py", line 413, in run_from_argv
    self.execute(*args, **cmd_options)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\base.py", line 459, in execute
    output = self.handle(*args, **options)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\base.py", line 107, in wrapper
    res = handle_func(*args, **kwargs)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\core\management\commands\migrate.py", line 303, in handle
    pre_migrate_apps = pre_migrate_state.apps
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\utils\functional.py", line 47, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\migrations\state.py", line 565, in apps
    return StateApps(self.real_apps, self.models)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\migrations\state.py", line 626, in __init__
    self.render_multiple([*models.values(), *self.real_models])
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\migrations\state.py", line 664, in render_multiple
    model.render(self)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\migrations\state.py", line 957, in render
    return type(self.name, bases, body)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\models\base.py", line 143, in __new__
    new_class.add_to_class("_meta", Options(meta, app_label))
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\models\base.py", line 371, in add_to_class
    value.contribute_to_class(cls, name)
    File "C:\Users\dell\AppData\Local\Programs\Python\Python312\Lib\site-packages\django\db\models\options.py", line 220, in contribute_to_class
    raise TypeError(
    TypeError: 'class Meta' got invalid attribute(s): index_together


    How can I resolve this error, and what changes do I need to make to migrate successfully?

    How can I resolve this error, and what changes do I need to make to migrate successfully? Is there an alternative to index_together in newer versions of Django?

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