AttributeError: 'ConfigDict' object has no attribute 'nms'

[jayungs]

Hello, I'm student in Korea.

I wanna know cause about error "AttributeError: 'ConfigDict' object has no attribute 'nms'".

I consulted "https://github.com/Tessellate-Imaging/Monk_Object_Detection/blob/master/application_model_zoo/Example%20-%20Protective%20gear%20-%20helmet%20and%20vest%20detection.ipynb".

I used Python and ANACONDA in VScode.

Also already finished package update to require on Demo environment need in "https://github.com/Tessellate-Imaging/Monk_Object_Detection/blob/master/application_model_zoo/Example%20-%20Protective%20gear%20-%20helmet%20and%20vest%20detection.ipynb"

My package list like under that.
"mmcv-full 1.3.7"
"mmdet 2.13.0"
"opencv 4.0.1"

Thank you.

Please help me T.T