Error while running tutorial

Hello,today I try to run the 1_tutorial_scenario_simulation.ipynb but an error appears while I set “create_video=True”.As the picture showed below.Could you please help me solve thhe error?
The code run well when I set “create_video=False”。





The problem could be related with ffmpeg.
Can you load an arbitrary CommonRoad scenario and create a video?

No,I use other three scenarios in tutorial:DEU_Frankfurt-34_11_I-1,DEU_Cologne-63_5_I-1,DEU_Aachen-3_1_I-1 to simulate and get the same error,and it can’t created videos either.

I mean a non-interactive CommonRoad scenario (with trajectory prediction)?