About registry

[xiaofeng-c]

When i use your code,a bug occur as follow:
KeyError: "No object named 'build_cotnet_fpn_backbone' found in 'BACKBONE' registry!"
but in your code,i find it have used the registry.By the way,i want to know where should i place the pretrained model in detectron2?Thank you for your reply.

[xiaofeng-c]

If i need to build the registry by myself?

[ThelilinNB]

Hello, have you solved this problem