Hi there,

I am new to PyG and facing with a error as below:

螢幕截圖 2023-06-29 下午6.21.07 1920×901 131 KB

Hope anyone can help on this.

Best regards,

Based on the error message it seems a path is expected while you are passing a None object. Check if graphs is None and make sure it’s the expected object for your CustomDataset .

PS: it’s always better to post code snippets by wrapping it into three backticks ``` instead of posting pictures.