TypeError: object of type 'NoneType' has no len()

[jjhhan]

Hello!

when i trained with my own dataset, some error occured, i do not know how to fix it.
my task is multi classes segmentation

[Almadani92]

Hello! when i trained with my own dataset, some error occured, i do not know how to fix it. my task is multi classes segmentation

Dear jjhhan,

could you please provide me with a sample of the training dataset you used. A sample image and its label.
I hope I can help.

[wxnzxt]

Hello! when i trained with my own dataset, some error occured, i do not know how to fix it. my task is multi classes segmentation

Dear jjhhan,
How did you implement multiple class segmentation？