TypeError: 'NoneType' object is not iterable

[baronbigghf]

Hi ,
I just installed MetaGpt on ubuntu20, and config LLM through modified ./config/congfig2.yaml;

then executed example , logs info below :
pydantic_core._pydantic_core.ValidationError: 1 validation error for Config
llm.api_key
Value error, Please set your API key in /home/*****/.metagpt/config2.yaml. If you also set your config in /data2/11_metadata/MetaGPT/config/config2.yaml,
the former will overwrite the latter. This may cause unexpected result.
[type=value_error, input_value='YOUR_API_KEY', input_type=str]
For further information visit https://errors.pydantic.dev/2.9/v/value_error

so ,I Erased /home/*/.metagpt/config2.yaml ，executed agant, Error info like below:
Feature description
$ python examples/di/data_visualization.py
2024-11-08 11:28:52.046 | INFO | metagpt.const:get_metagpt_package_root:21 - Package root set to /data2/11_metadata/MetaGPT
Traceback (most recent call last):
File "/data2/11_metadata/MetaGPT/examples/di/data_visualization.py", line 4, in
from metagpt.roles.di.data_interpreter import DataInterpreter
File "/data2/11_metadata/MetaGPT/metagpt/roles/init.py", line 9, in
from metagpt.roles.role import Role
File "/data2/11_metadata/MetaGPT/metagpt/roles/role.py", line 30, in
from metagpt.actions import Action, ActionOutput
File "/data2/11_metadata/MetaGPT/metagpt/actions/init.py", line 10, in
from metagpt.actions.action import Action
File "/data2/11_metadata/MetaGPT/metagpt/actions/action.py", line 15, in
from metagpt.actions.action_node import ActionNode
File "/data2/11_metadata/MetaGPT/metagpt/actions/action_node.py", line 22, in
from metagpt.llm import BaseLLM
File "/data2/11_metadata/MetaGPT/metagpt/llm.py", line 11, in
from metagpt.context import Context
File "/data2/11_metadata/MetaGPT/metagpt/context.py", line 14, in
from metagpt.config2 import Config
File "/data2/11_metadata/MetaGPT/metagpt/config2.py", line 169, in
config = Config.default()
^^^^^^^^^^^^^^^^
File "/data2/11_metadata/MetaGPT/metagpt/config2.py", line 110, in default
final = merge_dict(dicts)
^^^^^^^^^^^^^^^^^
File "/data2/11_metadata/MetaGPT/metagpt/config2.py", line 165, in merge_dict
result.update(dictionary)
### TypeError: 'NoneType' object is not iterable
Your Feature

[voidking]

How is config2.yaml configured?

[baronbigghf]

How is config2.yaml configured?

thank you vidking. I used conifg file under /home , erased ./config/congfig2.yaml， then it run ok . but not mind the reason .