When I'm running the [exercise 3](https://github.com/ray-project/tutorial/tree/master/tune_exercises/exercise_3_pbt.ipynb) after uncommenting the installation cell, I receive the following error: > --------------------------------------------------------------------------- > > ModuleNotFoundError Traceback (most recent call last) > > <ipython-input-4-b7cee92734a8> in <module>() > 18 from ray.tune import track > 19 from ray.tune.schedulers import PopulationBasedTraining > ---> 20 from ray.tune.utils import validate_save_restore > 21 > 22 get_ipython().magic('matplotlib inline') > > ModuleNotFoundError: No module named 'ray.tune.utils' > > > ---------------------------------------------------------------------------
When I'm running the exercise 3 after uncommenting the installation cell, I receive the following error: