findfont: Font family ['serif'] not found. Falling back to DejaVu Sans. about scienceplots

[G0K0URURI]

This may be because you don't install the corresponding font.

I use matplotlib-3.5.2, and then meet similar problem with you:

findfont: Font family ['serif'] not found. Falling back to DejaVu Sans. 
findfont: Generic family 'serif' not found because none of the following families were found: Times

I solve the problem by install the needed font 'Times'. I download the .ttf file from https://www.dafontfree.net/times-regular/f145546.htm and copy it to 'my_python_path/site-packages/matplotlib/mpl-data/fonts/ttf/'. After that, I delete the cache of matplotlib, which could be found by

import matplotlib
matplotlib.get_cachedir()

I hope it would be helpful for you : )

[hh-wu]

You can use the following code to avoid warning in win10 without calling latex.

plt.style.use(['science', 'ieee', 'no-latex'])
matplotlib.rc('font', family='times new roman')

[iDTer]

Or how can I set the ['serif'] to ['sans serif']?

Thank you for any help!!!

[echedey-ls]

Thank you everyone for the contribution.
Closing as resolved, since no more reports of the problem were made, I assume it did work.