AttributeError: Can't get attribute 'Checkpoint' on <module 'ray.tune.checkpoint_manager'


I am getting this error after the tuning is done.

AttributeError: Can’t get attribute ‘Checkpoint’ on <module ‘ray.tune.checkpoint_manager’ from ‘/usr/local/lib/python3.8/dist-packages/ray/tune/’>

I mention that I use SyncConfig to store the result on S3 and as version I am using ray==1.13.0.
I have not found any solution for this.

ray 1.13.0 is really really old.
I don’t know if we can reproduce this problem since all the dependencies are vastly different now.

do you get this error when calling best_checkpoints?