evolve throws an error

[OrjwanZaafarani]

❔Question

Why is this command throwing an error?
python train.py --img 640 --batch 32 --epochs 100 --data QMUL.yaml --weights yolov5m6.pt --cache --evolve

The error message:

Traceback (most recent call last):
  File "train.py", line 610, in <module>
    hyp[k] = max(hyp[k], v[1])  # lower limit
KeyError: 'anchors'

[OrjwanZaafarani]

I just solved the issue by following https://docs.ultralytics.com/yolov5/tutorials/hyperparameter_evolution#issuecomment-692599379

However, I still don't understand the effect of removing the anchors.

[glenn-jocher]

@OrjwanZaafarani for evolution you should uncomment the anchor field in your hyp file. This will allow the anchor count to evolve.