ServerSelectionTimeoutError at /tagging/

[molyswu]

Hi,
Tried to : python manage.py runserver
&& http://127.0.0.1:8000/tagging/

ServerSelectionTimeoutError at /tagging/
10.11.6.117:27017: timed out
Request Method: GET
Request URL: http://127.0.0.1:8000/tagging/
Django Version: 3.0.5
Exception Type: ServerSelectionTimeoutError
Exception Value:
10.11.6.117:27017: timed out
Exception Location: C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\pymongo\topology.py in _select_servers_loop, line 209
Python Executable: C:\Users\wutusun\AppData\Local\Continuum\anaconda3\python.exe
Python Version: 3.7.4

Traceback Switch to copy-and-paste view
C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\django\core\handlers\exception.py in inner
response = get_response(request) …
▶ Local vars
C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\django\core\handlers\base.py in _get_response
response = self.process_exception_by_middleware(e, request) …
▶ Local vars
C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\django\core\handlers\base.py in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs) …
▶ Local vars
Agriculture-KnowledgeGraph-Data\taggingDemo\taggingDemo\tagging.py in tagging
documents_count = collection.count() …
▶ Local vars
C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\pymongo\collection.py in count
return self._count(cmd, collation, session) …
▶ Local vars
C:\Users\wutusun\AppData\Local\Continuum\anaconda3\lib\site-packages\pymongo\collection.py in _count
_cmd, self._read_preference_for(session), session)