Hierarchical process error

[SONYYA7]

Traceback (most recent call last):
File "/content/crewai-updated-tutorial-hierarchical/main.py", line 33, in
crew = Crew(
File "/usr/local/lib/python3.10/dist-packages/pydantic/main.py", line 193, in init
self.pydantic_validator.validate_python(data, self_instance=self)
pydantic_core._pydantic_core.ValidationError: 1 validation error for Crew
Hierarchical process error: Tasks cannot be flagged with async_execution. [type=async_execution_in_hierarchical_process, input_value={'agents': [Agent(role=Ed...proxy=''), 'verbose': 2}, input_type=dict]

[mkiruba]

I am newbie in Python world, got this working like this

Forced to pip install crewai

Still got this error
ModuleNotFoundError: No module named 'pkg_resources'

So installed pip install setuptools