### Initial Checks - [ ] I have searched GitHub for a duplicate issue and I'm sure this is something new - [X] I have read and followed [the docs & demos](https://github.com/modelscope/modelscope-agent/tree/master/demo) and still think this is a bug - [ ] I am confident that the issue is with modelscope-agent (not my code, or another library in the ecosystem) ### What happened + What you expected to happen 1、下载代码 2、下载requirements.txt 依赖 3、运行app.py,正常 4、执行 llamaindex_rag.ipynb 中代码, 5、执行到 ### 下载embedding文件并且配置 代码时提示需要下载 llama-index-embeddings-huggingface 6、下载完包后,重新运行app.py 无法正常工作 ### Versions / Dependencies master ### Reproduction script 1、下载代码 2、下载requirements.txt 依赖 3、运行app.py,正常 4、执行 llamaindex_rag.ipynb 中代码, 5、执行到 ### 下载embedding文件并且配置 代码时提示需要下载 llama-index-embeddings-huggingface 6、下载完包后,重新运行app.py 无法正常工作 ### Issue Severity Medium: It is a significant difficulty but I can work around it.