Does anyone know about this issue? ```prefect back...
# ask-community
e
Does anyone know about this issue?
Copy code
prefect backend server
Traceback (most recent call last):
  xxxxx
  File "pyev/lib/python3.6/site-packages/prefect/utilities/notifications/__init__.py", line 1, in <module>
    from prefect.utilities.notifications.notifications import callback_factory
  File "pyev/lib/python3.6/site-packages/prefect/utilities/notifications/notifications.py", line 13, in <module>
    from toolz import curry
ModuleNotFoundError: No module named 'toolz'
I know it can be resolved by installing them with pip, but it looks to be something I should get for free by installing prefect
k
Hey @Enda Peng, I haven’t seen this before. I suggest pip installing and bringing this up if you see it happen again. You are right that it should come with Prefcet