后端运行报错，没找到openai_api_key

[NancyGetUp]

您好！我想要修改chatdoc后端的一些功能，然后在debug后端的时候，会报错，报错内容如下：
Traceback (most recent call last):
File "/Users/nancygetup/PycharmProjects/chatdoc-final/server/main.py", line 6, in
from doc_util import Doc
File "/Users/nancygetup/PycharmProjects/chatdoc-final/server/doc_util.py", line 17, in
llm_predictor = LLMPredictor(llm=ChatOpenAI(
File "pydantic/main.py", line 341, in pydantic.main.BaseModel.init
pydantic.error_wrappers.ValidationError: 1 validation error for ChatOpenAI
root
Did not find openai_api_key, please add an environment variable OPENAI_API_KEY which contains it, or pass openai_api_key as a named parameter. (type=value_error)

我已经在yml文件中输入自己的api key 了，不知道这里是有什么问题，可以请教一下吗谢谢了

[daodao97]

可以在 start 脚步中deubg下, 看看 OPENAI_API_KEY 的链路传递是否正常