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Question

Whenever I start the Kernel, this warning pop up

Failed to start the Kernel. 
c:\ProgramData\Anaconda3\lib\site-packages\traitlets\traitlets.py:2202: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
c:\ProgramData\Anaconda3\lib\site-packages\traitlets\traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use '650acb8e-de88-49d4-83a0-12cbf7a674c3' instead of 'b"650acb8e-de88-49d4-83a0-12cbf7a674c3"'.
  warn(
Bad file descriptor (bundled\zeromq\src\epoll.cpp:100).

How do I deal with whis issue?

Answer 1

I solve it by install a lower version of pyzmq by:

pip uninstall pyzmq
pip install pyzmq==19.0.2