Managed Jupyter Server fails to start in PyCharm 2019.3

I have installed PyCharm Professional and I want to run Jupyter notebook in it, but whenever I try to run a cell, a message appears saying Jupyter server stopped with this message error:

Jupyter server process finishedTraceback (most recent call last):
File "C:\ProgramData\Miniconda3\envs\untitled\Scripts\", line 6, in
from notebook.notebookapp import main
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\notebook\", line 49, in
from zmq.eventloop import ioloop
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\", line 47, in
from zmq import backend
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\", line 40, in
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\utils\", line 34, in reraise
raise value
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\", line 27, in
_ns = select_backend(first)
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\backend\", line 35, in select_backend
reraise(ImportError, ImportError("Importing %s failed with %s" % (name, e)), exc_info[2])
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\utils\", line 33, in reraise
raise value.with_traceback(tb)
File "C:\ProgramData\Miniconda3\envs\untitled\lib\site-packages\zmq\backend\", line 28, in select_backend
mod = import(name, fromlist=public_api)
ImportError: Importing zmq.backend.cython failed with invalid syntax (, line 5)

I can run jupyter in the command prompt, and even in the pycharm terminal, but when i try to run in in pycharm, with the 2 "managed jupyter server:autostart" it just doesn´t work

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Is it reproducible with a new conda environment?
Please file an issue to and attach your idea.log file from Help | Show Log in...

Unfortunately, the forum doesn't allow attachments so it's better to do it in YouTrack.


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