问题描述：
使用 torch-geometric 运行一个图神经网络Demo，出现了如下问题 RuntimeError: object has no attribute sparse_csc_tensor: File "/home/lbilic/anaconda3/envs/diffdock/lib/python3.9/site-packages/torch_sparse/tensor.py", line 520 value = torch.ones(self.nnz(), dtype=dtype, device=self.device())
Traceback (most recent call last):
File "/home/lbilic/anaconda3/envs/diffdock/lib/python3.9/runpy.py"