Issue with save_training_data.py

[GForceSquared]

Hi, I first just want to say that your guide for the DeepPiCar has been very insightful and interesting, especially for someone who is relatively new to deep learning! I managed to get through part 4 with no hiccups, and I was ready to use my newly recorded videos to train the deep learning model. However, when I tried to run save_training_data.py ~/DeepPiCar/models/lane_navigation/images/video01, I got the error VIDIOC_REQBUFS: Inappropriate ioctl for device. I made sure that I had a .avi file in the correct directory, but it's not letting me get the still images from the video. Any help on this issue would be appreciated! Thanks!