[bug] install requirement error: Could not find a version that satisfies the requirement numpy>=1.21.6

[yin-huamin]

Setting up environment by "1. Environment Setup" meets an error when run the command: pip install -r requirements.txt

git clone https://github.com/HKUDS/Paper2Slides.git
cd Paper2Slides
conda create -n paper2slides python=3.12 -y
conda activate paper2slides
pip install -r requirements.txt

(paper2slides) yinhm@user-Super:~/projects/app/Paper2Slides$ pip install -r requirements.txt
Collecting huggingface_hub (from -r requirements.txt (line 3))
Downloading huggingface_hub-1.2.3-py3-none-any.whl.metadata (13 kB)
Collecting lightrag-hku (from -r requirements.txt (line 4))
Downloading lightrag_hku-1.4.9.8-py3-none-any.whl.metadata (83 kB)
Collecting mineru==2.6.4 (from mineru[core]==2.6.4->-r requirements.txt (line 5))
Downloading mineru-2.6.4-py3-none-any.whl.metadata (71 kB)
Collecting tqdm (from -r requirements.txt (line 6))
Downloading tqdm-4.67.1-py3-none-any.whl.metadata (57 kB)
Collecting Pillow>=10.0.0 (from -r requirements.txt (line 9))
Downloading pillow-12.0.0-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl.metadata (8.8 kB)
Collecting reportlab>=4.0.0 (from -r requirements.txt (line 10))
Downloading reportlab-4.4.6-py3-none-any.whl.metadata (1.7 kB)
Collecting openai>=1.0.0 (from -r requirements.txt (line 13))
Downloading openai-2.13.0-py3-none-any.whl.metadata (29 kB)
Collecting python-dotenv>=1.0.0 (from -r requirements.txt (line 14))
Downloading python_dotenv-1.2.1-py3-none-any.whl.metadata (25 kB)
Collecting pyyaml>=6.0 (from -r requirements.txt (line 17))
Downloading pyyaml-6.0.3-cp312-cp312-manylinux2014_x86_64.manylinux_2_17_x86_64.manylinux_2_28_x86_64.whl.metadata (2.4 kB)
Collecting requests>=2.28.0 (from -r requirements.txt (line 18))
Downloading requests-2.32.5-py3-none-any.whl.metadata (4.9 kB)
Collecting fastapi==0.122 (from -r requirements.txt (line 22))
Downloading fastapi-0.122.0-py3-none-any.whl.metadata (30 kB)
Collecting uvicorn==0.38.0 (from uvicorn[standard]==0.38.0->-r requirements.txt (line 23))
Downloading uvicorn-0.38.0-py3-none-any.whl.metadata (6.8 kB)
Collecting python-multipart==0.0.20 (from -r requirements.txt (line 24))
Downloading python_multipart-0.0.20-py3-none-any.whl.metadata (1.8 kB)
Collecting pydantic==2.12.3 (from -r requirements.txt (line 25))
Downloading pydantic-2.12.3-py3-none-any.whl.metadata (87 kB)
WARNING: Connection timed out while downloading.
WARNING: Attempting to resume incomplete download (0 bytes/87 kB, attempt 1)
Downloading pydantic-2.12.3-py3-none-any.whl.metadata (87 kB)
Collecting boto3>=1.28.43 (from mineru==2.6.4->mineru[core]==2.6.4->-r requirements.txt (line 5))
Downloading boto3-1.42.11-py3-none-any.whl.metadata (6.8 kB)
Collecting click>=8.1.7 (from mineru==2.6.4->mineru[core]==2.6.4->-r requirements.txt (line 5))
Downloading click-8.3.1-py3-none-any.whl.metadata (2.6 kB)
Collecting loguru>=0.7.2 (from mineru==2.6.4->mineru[core]==2.6.4->-r requirements.txt (line 5))
Downloading loguru-0.7.3-py3-none-any.whl.metadata (22 kB)
INFO: pip is looking at multiple versions of mineru to determine which version is compatible with other requirements. This could take a while.
ERROR: Could not find a version that satisfies the requirement numpy>=1.21.6 (from mineru) (from versions: none)
ERROR: No matching distribution found for numpy>=1.21.6