KeyError: 'header'

[neuropsycher]

Anaconda env, Google colab, Deeplabcut 2.26b
OS: Windows 10

Hello, I have come across a 'header' error after trying to refine tracklets. I cannot seem to run this part correctly. I attached a file to show my error.

Edit: After attempting more times, I found another error after setting my paths for 'refine_tracklets.' This is a OSerror: HD5 error back trace. The other concern I had was on setting the correct path for 'pickle_or_h5_file', as I have three different pickle files that were in my videos folder (full, meta, and bx).

Thank you so much for the time and help!

[Alyetama]

This might help: MultiAnimalProject, key error: header.