The problem meet when i try to run the train.ipynb about siamese-mask-rcnn

[Husband-of-Reimu]

I have solved this problem by replacing the Mask_RCNN with the original repository, author change the coco.py so that lack the 'active_classes'

[michaelisc]

To understand this correct: It worked with our version of Mask_RCNN and the corresponding version of coco.py but not with the current version of the Mask_RCNN code from https://github.com/matterport/Mask_RCNN ?

[michaelisc]

I found the bug. We apparently made some changes in the Mask R-CNN code. Specifically we added self.active classes = [] to the init of the Dataset class in lib/Mask_RCNN/mrcnn/utils.py and reference it in the samples lib/Mask_RCNN/samples/coco/coco.py. This is definitely unintuitive and prevents updating the Mask R-CNN code.

[michaelisc]

This should be fixed with commit 5d92638. Please report if the error should still exist.