C:\Users\74007\PycharmProjects\Blogs-Code-master\django_demo_with_frontend_and_backend\bo
ok_demo>python3 manage.py makemigrations
Traceback (most recent call last):
  File "manage.py", line 21, in <module>
    main()
  File "manage.py", line 17, in main
    execute_from_command_line(sys.argv)
  File "C:\Users\74007\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2k
fra8p0\LocalCache\local-packages\Python38\site-packages\django\core\management\__init__.p
y", line 401, in execute_from_command_line
    utility.execute()
  File "C:\Users\74007\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2k
fra8p0\LocalCache\local-packages\Python38\site-packages\django\core\management\__init__.p
y", line 377, in execute
    django.setup()
  File "C:\Users\74007\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2k
fra8p0\LocalCache\local-packages\Python38\site-packages\django\__init__.py", line 24, in
setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\74007\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2k
fra8p0\LocalCache\local-packages\Python38\site-packages\django\apps\registry.py", line 91
, in populate
    app_config = AppConfig.create(entry)
  File "C:\Users\74007\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2k
fra8p0\LocalCache\local-packages\Python38\site-packages\django\apps\config.py", line 90,
in create
    module = import_module(entry)
  File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.1776.0_x64__
qbz5n2kfra8p0\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'corsheaders'

已经使用过 ' pip install django-cors-headers '

显示结果为

Requirement already satisfied: django-cors-headers in c:\users\74007\appdata\roaming\pyth
on\python39\site-packages (3.7.0)

Requirement already satisfied: Django>=2.2 in c:\users\74007\appdata\local\programs\pytho
n\python39\lib\site-packages (from django-cors-headers) (3.1.3)

Requirement already satisfied: sqlparse>=0.2.2 in c:\users\74007\appdata\local\programs\p
ython\python39\lib\site-packages (from Django>=2.2->django-cors-headers) (0.4.1)

Requirement already satisfied: asgiref<4,>=3.2.10 in c:\users\74007\appdata\local\program
s\python\python39\lib\site-packages (from Django>=2.2->django-cors-headers) (3.3.1)

Requirement already satisfied: pytz in c:\users\74007\appdata\local\programs\python\pytho
n39\lib\site-packages (from Django>=2.2->django-cors-headers) (2020.4)

并且在 INSTALLED_APPS 里加入了 'corsheaders' 请问有人知道为什么还是在>python3 manage.py makemigrations时会报错吗 求教