rag功能不能正常使用 #1772
Description
安装稳定版（截止2025-3-19）无法使用rag功能，无法运行示例代码，会显示以下错误：
Retrying llama_index.embeddings.openai.base.get_embeddings in 1.7915908865025045 seconds as it raised NotFoundError: Error code: 404 - {'event_id': '30-inst-228-20250319170241-4fed467a', 'error_msg': 'Not Found. Please check the configuration.'}.
....
File "E:\Anaconda\envs\metagpt_stable\lib\site-packages\openai_base_client.py", line 930, in _request
raise self._make_status_error_from_response(err.response) from None
openai.NotFoundError: Error code: 404 - {'event_id': '30-inst-5-20250319170244-9280c94d', 'error_msg': 'Not Found. Please check the configuration.'}
安装最新的稳定版metagpt==0.8.2会有依赖冲突，试过git clone方法和pip install --upgrade metagpt（pip install --upgrade git+https://github.com/geekan/MetaGPT.git）后会出现缺失包的情况：
Traceback (most recent call last):
File "D:\Metagpt\MetaGPT81\test.py", line 3, in
from metagpt.rag.engines import SimpleEngine
File "E:\Anaconda\envs\metagpt_stable\lib\site-packages\metagpt\rag\engines_init_.py", line 3, in
from metagpt.rag.engines.simple import SimpleEngine
File "E:\Anaconda\envs\metagpt_stable\lib\site-packages\metagpt\rag\engines\simple.py", line 35, in
from metagpt.rag.factories import (
File "E:\Anaconda\envs\metagpt_stable\lib\site-packages\metagpt\rag\factories_init_.py", line 3, in
from metagpt.rag.factories.retriever import get_retriever
File "E:\Anaconda\envs\metagpt_stable\lib\site-packages\metagpt\rag\factories\retriever.py", line 16, in
from llama_index.vector_stores.milvus import MilvusVectorStore
ModuleNotFoundError: No module named 'llama_index.vector_stores.milvus'；
安装'llama_index.vector_stores.milvus就会有冲突，无法解决！！！
具体是metagpt==1.0.0依赖setuptools==65.6.3，但是pymilvus 2.5.5 requires setuptools>69等等，有很多冲突无法解决！！
ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
llama-index-embeddings-azure-openai 0.1.6 requires llama-index-core<0.11.0,>=0.10.11.post1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-embeddings-openai 0.1.5 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-llms-azure-openai 0.1.4 requires llama-index-core<0.11.0,>=0.10.11.post1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-llms-openai 0.1.8 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-readers-file 0.1.4 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-retrievers-bm25 0.1.3 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-vector-stores-chroma 0.1.6 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-vector-stores-elasticsearch 0.1.6 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
llama-index-vector-stores-faiss 0.1.1 requires llama-index-core<0.11.0,>=0.10.1, but you have llama-index-core 0.12.25 which is incompatible.
metagpt 1.0.0 requires setuptools==65.6.3, but you have setuptools 76.1.0 which is incompatible.
metagpt 1.0.0 requires typing-extensions==4.11.0, but you have typing-extensions 4.12.2 which is incompatible.
semantic-kernel 0.4.3.dev0 requires python-dotenv==1.0.0, but you have python-dotenv 1.0.1 which is incompatible.