After modifying the fpn, an error is reported when loading checkpoint

[ustczhouyu]

Hello, when I modify the FPN in maskrcnn_benchmark/modeling/backbone/fpn.py, the network reports an error when initializing, because the network loads WEIGHT: "catalog://ImageNetPretrained/MSRA/R-50", as show in configs/ e2e_ms_rcnn_R_50_FPN_1x.yaml. When I changed it to WEIGHT: "", the network can be trained, but the initial loss is great. I want to know if I can load the "catalog://ImageNetPretrained/MSRA/R-50" weight after modifying the fpn. Please help me, thanks.