Mamba.__init__() got an unexpected keyword argument layer_idx

[Shadow581]

Hello, it always shows Mamba.__init__() got an unexpected keyword argument layer_idx

I used the solution, but it not works.(state-spaces/mamba#315).

The problem has been bothering me for a week.

My Env:
GPU: 3090
Python 3.10(ubuntu22.04)
remians: follow the command to install. (https://github.com/SkyworkAI/PointCloudMamba/blob/main/INSTALL.md)

pip install torch==2.1.1 torchvision==0.16.1 torchaudio==2.1.1 --index-url https://download.pytorch.org/whl/cu118
pip install torch-scatter -f https://data.pyg.org/whl/torch-2.1.1%2Bcu118.html
pip install -r requirements.txt
          
# install mamba
cd openpoints/models/PCM/causal-conv1d/
pip install -e .
cd ../mamba
pip install -e .

Could you help to solve the problem?