output .png file and got error

[bigbear1024]

Hi, I trying to output the png file, and show error message like below, what should I do?
Thanks!

pi@raspberrypi:~/Desktop $ MPLBACKEND=Agg stressberry-plot out.dat -o out.png
Traceback (most recent call last):
File "/home/pi/.local/bin/stressberry-plot", line 8, in
sys.exit(plot())
File "/home/pi/.local/lib/python3.7/site-packages/stressberry/cli.py", line 152, in plot
ax1.plot(
AttributeError: 'NoneType' object has no attribute 'plot'

[anujdeshpande]

@bigbear1024 how did you fix this?

[bigbear1024]

@anujdeshpande you can check this issue
#42 (comment)