I have followed all the steps in the Matplotlib guide for using LaTeX fonts in plots and yet I am still getting the error "FileNotFoundError missing font metrics file: rsfs10" when I try to save my figure. Here are the steps I've taken:
1) I have a 'matplotlibrc' file specifying that one of the supported backends be used
2) I have the MiKTeX 2.9 and Ghostscript 9.26 binary folders in my PATH (my MiKTeX contains dvipng.exe)
3) I have in my script plt.rc('text', usetex=True) and plt.rc('font', family='times')
Someone was able to solve this on SO here but I'm unable to follow what exactly they've done.
