IndexError: index 0 is out of bounds for dimension 0 with size 0 during train

[Azadeh Ashouri]

Hi, I'd like to train SOLO on my custom dataset which contains one class. Then I got this error during training the model.
I'll appreciate your help. Many thanks

[wangzehui20]

you can add 'background' in your CLASSES

[tlud]

I have met the same problem. How did you solve this ?