UnpicklingError: invalid load key, '<'.

[bolongliu]

UnpicklingError Traceback (most recent call last)
in <cell line: 9>()
7 # load model and prepare mask transform
8 device = "cuda" if torch.cuda.is_available() else "cpu"
----> 9 model, preprocess = alpha_clip.load("ViT-L/14", alpha_vision_ckpt_pth="clip_l14_grit20m_fultune_2xe.pth", device=device) # change to your own ckpt path
10 mask_transform = transforms.Compose([
11 transforms.ToTensor(),

2 frames
/usr/local/lib/python3.10/dist-packages/torch/serialization.py in _legacy_load(f, map_location, pickle_module, **pickle_load_args)
1256 "functionality.")
1257
-> 1258 magic_number = pickle_module.load(f, **pickle_load_args)
1259 if magic_number != MAGIC_NUMBER:
1260 raise RuntimeError("Invalid magic number; corrupt file?")

UnpicklingError: invalid load key, '<'.