CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False.

不知道电脑改了啥配置,启动pycharm时项目都不见了,重新打开项目后,用pycharm直接运行django项目,汇报这个错误
CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False.
这时用python manage.py runserver试一下是可以运行的。
以前pycharm直接运行是没有问题的,突然就变这样了不知道咋回事
目前的settings.py是这样设置的:
DEBUG = True
ALLOWED_HOSTS = ['*']

Pycharm中修改如下配置:
1.Run-Edit Configurations-Environment-Environment variables:DJANGO_SETTINGS_MODULE=mysite.settings;
2.File-Settings-Languages&Frameworks-Schemas and DTDs-Django:勾选Enable Django Support,Setttings:mysite\settings.py