Rag example not working

[anayjain]

I ran the rag example in intel_extension_for_transformers/neural_chat/pipeline/plugins/retrieval/README.md and I got this error -

Steps to re-create -

1. !apt-get install -y ffmpeg
   !apt-get install -y libgl1-mesa-glx libgl1-mesa-dev

2. !pip3 install intel-extension-for-transformers

3. !git clone https://github.com/intel/intel-extension-for-transformers.git

4. %cd ./intel-extension-for-transformers/intel_extension_for_transformers/neural_chat/pipeline/plugins/retrieval/
   !pip install -r requirements.txt
   %cd ../../../../../../

5. %cd ./intel-extension-for-transformers/intel_extension_for_transformers/neural_chat/
   !pip install -r requirements.txt
   %cd ../../../

6. then I ran rag example -
   from intel_extension_for_transformers.neural_chat import PipelineConfig
   from intel_extension_for_transformers.neural_chat import build_chatbot
   from intel_extension_for_transformers.neural_chat import plugins
   plugins.retrieval.enable=True
   plugins.retrieval.args["input_path"]="./docs/"
   config = PipelineConfig(plugins=plugins)
   chatbot = build_chatbot(config)

and got the error -

[benjamin-marie]

The "import from intel_extension_for_transformers.transformers.modeling import AutoModelForCausalLM" also fails with the same error message.
But my installation command is much simpler:
pip install intel-extension-for-transformers