Python '；静态文件'；不是注册的标记库：这些解决方案不'；行不通

我对Heroku和Django不熟悉。
现在我在中间。< BR> 当我访问https://（…secret…）-app-123.herokuapp.com/db，
我得到了以下错误：

'staticfiles' is not a registered tag library. Must be one of:
admin_list
admin_modify
admin_urls
cache
i18n
l10n
log
static
tz

然后我找到了。
然而，这些解决方案并不能解决我的问题

首先，我改变了

{% load staticfiles %}

到

。。。在

db.html

中

它给了我：

run python manage.py migrate
Running python manage.py migrate on ⬢ (...secret...)-app-123... up, run.3361 (Free)
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, hello, sessions
Running migrations:
  No migrations to apply.
  Your models have changes that are not yet reflected in a migration, and so won't be applied.
  Run 'manage.py makemigrations' to make new migrations, and then re-run 'manage.py migrate' to apply them.

由于错误消息告诉我运行

manage.py makemigrations

，我运行了：

manage.py makemigrations
Traceback (most recent call last):
  File "C:\Users\xxxxx\python-getting-started\manage.py", line 8, in ?
    from django.core.management import execute_from_command_line
ImportError: No module named django.core.management

没有模块？
Django已安装在我的机器上。
我不知道该怎么办，所以我在本地机器上更新了Django：

C:\Users\xxxxx\python-getting-started>pip install django --upgrade
Requirement already up-to-date: django in c:\users\xxxxx\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (3.1.2)
Requirement already satisfied, skipping upgrade: sqlparse>=0.2.2 in c:\users\xxxxx\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from django) (0.4.1)
Requirement already satisfied, skipping upgrade: pytz in c:\users\xxxxx\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from django) (2020.1)
Requirement already satisfied, skipping upgrade: asgiref~=3.2.10 in c:\users\xxxxx\appdata\local\packages\pythonsoftwarefoundation.python.3.8_qbz5n2kfra8p0\localcache\local-packages\python38\site-packages (from django) (3.2.10)

。。。但是，这并不能解决我的问题

我还补充说：

STATIC_URL = '/static/'
STATICFILES_DIRS = [os.path.join(BASE_DIR, 'static')]
VENV_PATH = os.path.dirname(BASE_DIR)
STATIC_ROOT = os.path.join(VENV_PATH, 'static_root')

在

settings.py的末尾，但它也不起作用

我还能做什么

关于您的信息，到目前为止没有任何错误。

如果你有任何错误，你甚至到不了这里

请随意询问我的设置，输入这个，输入那个，等等。
提前谢谢。
您应该使用虚拟环境。在虚拟环境中管理django项目将更容易。
谢谢。我刚刚按照说明创建了一个名为
djev
的虚拟环境。结果如下：（djev）C:\WINDOWS\system32>conda list#环境中的包位于C:\ProgramData\Anaconda3\envs\djev:##Name Version Build Channel alabaster 0.7.12 py37_0:django 2.2.5 py37_1。。。现在该怎么办
manage.py makemigrations
仍然会显示错误。当我启动Heroku Django指令时，我正在使用
base
环境。我必须从头开始重新做整个过程吗？
STATIC_URL = '/static/'
STATICFILES_DIRS = [os.path.join(BASE_DIR, 'static')]
VENV_PATH = os.path.dirname(BASE_DIR)
STATIC_ROOT = os.path.join(VENV_PATH, 'static_root')