Errors in the evaluation (data has only one category)

[Mindisblown]

My data has only one category, i set self.eval_interval = 1, but got ap = -1.0. The same problem is in EfficientDet eval [https://github.com/zylo117/Yet-Another-EfficientDet-Pytorch/issues/542], in yolox/layers/fast_coco_eval_api.py, i add p.catIds = 1, but got ap = 0.0.

One point worth noting in yolox/data/datasets/coco.py

i modified img_file

[Mindisblown]

I checked the data load is correct, but i find coco_evaluator.py 116 line outputs = postprocess() return None.

[FateScript]

what's your value of num_classes

[Mindisblown]

num_classes = 1