问题遇到的现象和发生背景
pyg (torch-geometric )报错
当torch-geometric==2.0.1或更低等级时，报错AttributeError: Can't get attribute 'DataEdgeAttr' on <module 'torch_geometric.data.data'
当torch-geometric==2.1.0时，报错RuntimeError: The 'data' object was created by an older version of PyG. If this error occurred while loading an already existing dataset, remove the 'processed/' directory in the dataset's root folder and try again. 但并没有'processed/'这个文件夹。
操作环境、软件版本等信息
linux 16.04
尝试过的解决方法
更换了好多次版本，依旧报错
