ppo code running error

[cxw-droid]

Hello, can you take a look at the following error? Thanks.

run code experiment.py

annotated_deep_learning_paper_implementations/labml_nn/rl/game.py

Line 130 in a0679ec

obs = cv2.cvtColor(obs, cv2.COLOR_RGB2GRAY)

cv2.error: OpenCV(4.9.0) 👎 error: (-5:Bad argument) in function 'cvtColor'
Overload resolution failed:

• src is not a numerical tuple
• Expected Ptrcv::UMat for argument 'src'

[vpj]

Looks like it's not compatible with some newer version of opencv.

[lei3li]

does anyone know how to resolve this problem? I tried multiple opencv version but it didn't work.