AssertionError: OPENAI_API_KEY environment variable is missing from .env

[pankyye]

Hi

every time I run python3 babyagi.py, there display an error:

Using embedded DuckDB without persistence: data will be transient
Traceback (most recent call last):
File "/Users/panky/babyagi/babyagi.py", line 33, in
assert OPENAI_API_KEY, "\033[91m\033[1m" + "OPENAI_API_KEY environment variable is missing from .env" + "\033[0m\033[0m"
AssertionError: OPENAI_API_KEY environment variable is missing from .env

I have setup the openai API key in the .eve file, does any one could help me figure out what is going on here? Thanks!