ModuleNotFoundError: No module named qdarkstyle.colorsystem [Python]


I happened to update my package of spyder to v5 from v4, I got the below error message,

Traceback (most recent call last):
  File "/home/c2c/anaconda3/envs/py37/bin/spyder", line 11, in <module>
  File "/home/c2c/anaconda3/envs/py37/lib/python3.8
  /site-packages/spyder/app/", line 210, in main
    from import mainwindow
    from spyder.utils.palette import QStylePalette, SpyderPalette
  File "/home/c2c/anaconda3/envs/py37/lib/python3.8
  /site-packages/spyder/utils/", line 12, in 
    from qdarkstyle.colorsystem import Blue, Gray

ModuleNotFoundError: No module named 'qdarkstyle.colorsystem'


It looks like there is some issue that needs a dev fix, the way I was able to get back things to work was reverting back to the previous version of the package spyder,

% conda install spyder=4.2.5

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