我检查了代码 跟下载的一样，怎么解决呢？

ValueError at /userfavs/

Cannot assign "<django.contrib.auth.models.AnonymousUser object at 0x0000027597551EF0>": "UserFav.user" must be a "UserProfile" instance.

Request Method: 	POST
Request URL: 	http://127.0.0.1:8000/userfavs/
Django Version: 	1.11
Exception Type: 	ValueError
Exception Value: 	

Cannot assign "<django.contrib.auth.models.AnonymousUser object at 0x0000027597551EF0>": "UserFav.user" must be a "UserProfile" instance.

Exception Location: 	D:\Envs\MxShop\lib\site-packages\django\db\models\fields\related_descriptors.py in __set__, line 216
Python Executable: 	D:\Envs\MxShop\Scripts\python.exe
Python Version: 	3.6.0
Python Path: 	

['C:\\Users\\huang\\PycharmProjects\\MxShop\\extra_apps',
 'C:\\Users\\huang\\PycharmProjects\\MxShop\\apps',
 'C:\\Users\\huang\\PycharmProjects\\MxShop',
 'C:\\Users\\huang\\PycharmProjects\\MxShop',
 'C:\\Program Files\\JetBrains\\PyCharm 2018.2.4\\helpers\\pydev',
 'C:\\Users\\huang\\PycharmProjects\\MxShop',
 'C:\\Users\\huang\\PycharmProjects\\MxShop\\apps',
 'C:\\Users\\huang\\PycharmProjects\\MxShop\\extra_apps',
 'C:\\Program Files\\JetBrains\\PyCharm 2018.2.4\\helpers\\pydev',
 'C:\\Users\\huang\\.PyCharm2018.2\\system\\cythonExtensions',
 'D:\\Envs\\MxShop\\Scripts\\python36.zip',
 'C:\\Users\\huang\\AppData\\Local\\Programs\\Python\\Python36\\DLLs',
 'C:\\Users\\huang\\AppData\\Local\\Programs\\Python\\Python36\\lib',
 'C:\\Users\\huang\\AppData\\Local\\Programs\\Python\\Python36',
 'D:\\Envs\\MxShop',
 'D:\\Envs\\MxShop\\lib\\site-packages',
 'D:\\Envs\\MxShop\\lib\\site-packages\\setuptools-39.1.0-py3.6.egg',
 'C:\\Program Files\\JetBrains\\PyCharm '
 '2018.2.4\\helpers\\pycharm_matplotlib_backend']

Server time: 	星期日, 5 五月 2019 15:09:54 +0800