ModuleNotFoundError: No module named 'cvpods'

[meongeun]

I have this error message. Do you know why this error message appears?

Traceback (most recent call last): File "train.py", line 72, in import models.distillator File "/home/LGD/models/distillator.py", line 13, in from .customized_detectors import build_customized_detector File "/home/LGD/models/customized_detectors/init.py", line 3, in from .fcos import FCOSCT File "/home/LGD/models/customized_detectors/fcos.py", line 12, in from .thirdparty_heads import FCOS File "/home/LGD/models/customized_detectors/thirdparty_heads/init.py", line 1, in from .fcos import FCOS File "/home/LGD/models/customized_detectors/thirdparty_heads/fcos.py", line 12, in from cvpods.modeling.anchor_generator import ShiftGenerator ModuleNotFoundError: No module named 'cvpods'