I had asked for help on trying to get my hierarchical ai newsletter from Brandon's video up and running. I did not understand all the error message but it seems to come down to my connection to openai. When I use OpenAIGPT4 = ChatOpenAI(model = "gpt-4") in the program, I get this message at the end of a long error string: File "/Users/terrybyrd/Library/Caches/pypoetry/virtualenvs/ai-newsletter2-Qzdo-5fg-py3.12/lib/python3.12/site-packages/openai/_base_client.py", line 1020, in _request raise self._make_status_error_from_response(err.response) from None openai.NotFoundError: Error code: 404 - {'error': {'message': 'The model `gpt-4` does not exist or you do not have access to it.', 'type': 'invalid_request_error', 'param': None, 'code': 'model_not_found'}} Whe I use OpenAIGPT4 = ChatOpenAI(model="gpt-3.5-turbo", I get this error at the end of the error string: File "/Users/terrybyrd/Library/Caches/pypoetry/virtualenvs/ai-newsletter2-Qzdo-5fg-py3.12/lib/python3.12/site-packages/openai/_base_client.py", line 1020, in _request raise self._make_status_error_from_response(err.response) from None openai.RateLimitError: Error code: 429 - {'error': {'message': 'You exceeded your current quota, please check your plan and billing details. For more information on this error, read the docs: https://platform.openai.com/docs/guides/error-codes/api-errors.', 'type': 'insufficient_quota', 'param': None, 'code': 'insufficient_quota'}} I have more than enough to satisfy this request in my OpenAI account ($18.00) and none of it seems to be used when I run this crew. There could be some other problems with the program but I suspect all of the other problems start with this failure. Any thoughts on this?

I need help from anyone in the community who can answer my question. I have been following Brandon video on building a travel planner from his video for Crewai beginners. I downloaded python 3.11.9 as it seems that he says you should use a version less than 3.12. I followed his instructions to the letter but I am still getting some type(s) of errors when I run the application. The error starts like this: "> Entering new CrewAgentExecutor chain... Exception in thread Thread-1 (_execute): Traceback (most recent call last): File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 1045, in _bootstrap_inner self.run() File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/threading.py", line 982, in run ..." and end like this: " File "/Users/terrybyrd/Library/Caches/pypoetry/virtualenvs/ai-news-letter-8g0Q9LeX-py3.11/lib/python3.11/site-packages/crewai/crew.py", line 242, in _run_hierarchical_process task_output = task.execute( ^^^^^^^^^^^^^ File "/Users/terrybyrd/Library/Caches/pypoetry/virtualenvs/ai-news-letter-8g0Q9LeX-py3.11/lib/python3.11/site-packages/crewai/task.py", line 93, in execute context.append(task.output.result) ^^^^^^^^^^^^^^^^^^ AttributeError: 'NoneType' object has no attribute 'result'" Now I could put the entire error output up but it is long. I understand programming fairly well but have been away from it for a while. I am not familiar with all the packages and independencies of these packages but I am picking it up as I go along. Any suggestions to solving my problem will be very much appreciated. Thanks.