The runtime optuna version 2.9.1 is no longer compatible with the table schema (set up by optuna 2.9.1)

As the title says this error comes up

RuntimeError: The runtime optuna version 2.9.1 is no longer compatible with the table schema (set up by optuna 2.9.1). Please try updating optuna to the latest version by $ pip install -U optuna.

i did “pip install -U optuna”. and didnt fix it. so not sure what to do here

Steps to reproduce

1- added storage = optuna.storages.RDBStorage(tracking_uri) 2- study = optuna.create_study(study_name="optimization", storage=storage, sampler=sampler, direction="maximize", pruner=pruner, load_if_exists=True)

3- run the optimization

Environment

• Optuna version: 2.9.1
• Python version: 3.9
• OS: pop-os

[sanadnajjar]

@nzw0301 ohhhh it worked, that was not clear to as i wanted optuna to use the same trials in mlflow. thank you so much. i really appreciate your help.

[nzw0301]

Brilliant! I think you need to use a different tracking_uri to save optuna’s study because the same URI is used for mlflow’s tracking, where the DB schema is for mlflow; not for Optuna.