Traceback (most recent call last): File "F:\python3.5.1\python3\lib\site-packages\django\db\models\utils.py", line 14, in make_model_tuple app_label, model_name = model.split(".")ValueError: too many values to unpack (expected 2)During handling of the above exception, another exception occurred:Traceback (most recent call last): File "E:\pycharm\PyCharm 2017.1.4\helpers\pycharm\django_manage.py", line 43, in <module> run_module(manage_file, None, '__main__', True) File "f:\python3.5.1\Lib\runpy.py", line 182, in run_module return _run_module_code(code, init_globals, run_name, mod_spec) File "f:\python3.5.1\Lib\runpy.py", line 96, in _run_module_code mod_name, mod_spec, pkg_name, script_name) File "f:\python3.5.1\Lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "D:/mxonline\manage.py", line 22, in <module> execute_from_command_line(sys.argv) File "F:\python3.5.1\python3\lib\site-packages\django\core\management\__init__.py", line 363, in execute_from_command_line utility.execute() File "F:\python3.5.1\python3\lib\site-packages\django\core\management\__init__.py", line 355, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "F:\python3.5.1\python3\lib\site-packages\django\core\management\base.py", line 283, in run_from_argv self.execute(*args, **cmd_options) File "F:\python3.5.1\python3\lib\site-packages\django\core\management\base.py", line 330, in execute output = self.handle(*args, **options) File "F:\python3.5.1\python3\lib\site-packages\django\core\management\commands\makemigrations.py", line 177, in handle migration_name=self.migration_name, File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\autodetector.py", line 47, in changes changes = self._detect_changes(convert_apps, graph) File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\autodetector.py", line 133, in _detect_changes self.old_apps = self.from_state.concrete_apps File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\state.py", line 222, in concrete_apps self.apps = StateApps(self.real_apps, self.models, ignore_swappable=True) File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\state.py", line 288, in __init__ self.render_multiple(list(models.values()) + self.real_models) File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\state.py", line 323, in render_multiple model.render(self) File "F:\python3.5.1\python3\lib\site-packages\django\db\migrations\state.py", line 626, in render body, File "F:\python3.5.1\python3\lib\site-packages\django\db\models\base.py", line 162, in __new__ new_class.add_to_class(obj_name, obj) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\base.py", line 331, in add_to_class value.contribute_to_class(cls, name) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\fields\related.py", line 745, in contribute_to_class super(ForeignObject, self).contribute_to_class(cls, name, private_only=private_only, **kwargs) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\fields\related.py", line 348, in contribute_to_class lazy_related_operation(resolve_related_class, cls, self.remote_field.model, field=self) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\fields\related.py", line 85, in lazy_related_operation return apps.lazy_model_operation(partial(function, **kwargs), *model_keys) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\fields\related.py", line 83, in <genexpr> model_keys = (make_model_tuple(m) for m in models) File "F:\python3.5.1\python3\lib\site-packages\django\db\models\utils.py", line 23, in make_model_tuple "must be of the form 'app_label.ModelName'." % modelValueError: Invalid model reference 'apps.courses.Course'. String model references must be of the form 'app_label.ModelName'.
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