报错No module named 'django'

[lyyyann]

下载安装相关包后，报错如下：
/Users/liuyang/PycharmProjects/flask-adminlte-scaffold-master/venv/bin/python /Applications/PyCharm.app/Contents/plugins/python/helpers/pydev/pydevconsole.py --mode=client --port=49488
import sys; print('Python %s on %s' % (sys.version, sys.platform))
import django; print('Django %s' % django.get_version())
sys.path.extend(['/Users/liuyang/PycharmProjects/flask-adminlte-scaffold-master', '/Applications/PyCharm.app/Contents/plugins/python/helpers/pycharm', '/Applications/PyCharm.app/Contents/plugins/python/helpers/pydev'])
if 'setup' in dir(django): django.setup()
import django_manage_shell; django_manage_shell.run("/Users/liuyang/PycharmProjects/flask-adminlte-scaffold-master")
PyDev console: starting.
Python 3.8.5 (v3.8.5:580fbb018f, Jul 20 2020, 12:11:27)
[Clang 6.0 (clang-600.0.57)] on darwin
Traceback (most recent call last):
File "", line 4, in
File "/Applications/PyCharm.app/Contents/plugins/python/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
module = self._system_import(name, *args, **kwargs)
ModuleNotFoundError: No module named 'django'

为啥会出现【No module named 'django'】呢