a bytes-like object is required, not 'NoneType

[SuroshAhmadZobair]

Hi @WoodsGao

Thanks for the utils.

I get this error when i open the files in labelme.

Error opening file
a bytes-like object is required, not 'NoneType

Make sure /home/me/fixing/images/images2-1.json is a valid label file.
Any insight?
Cheers.