老师，您好。 from polls.models import Question, Choice 报这个错误： RuntimeError: Model class polls.models.Question doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.
老师，您好。 from polls.models import Question, Choice 报这个错误： RuntimeError: Model class polls.models.Question doesn't declare an explicit app_label and isn't in an application in INSTALLED_APPS.