Darkflow: "'Nonetype' has no attribute 'shape'" when trying to train

[tugwitt]

I've been trying to train a slimmer model but anytime I run the training command (ex: ./flow --model cfg/tiny-yolo-voc.cfg --load bin/tiny-yolo-voc.weights --train --database VOC2012/JPEGImages/ --annotation VOC2012/Annotations/ --batch 16) I get this error:

File "./flow", line 56, in <module> print('Enter training ...'); tfnet.train() File "/home/ubuntu/darkflow/net/flow.py", line 37, in train for i, (x_batch, datum) in enumerate(batches): File "/home/ubuntu/darkflow/net/yolo/data.py", line 146, in shuffle inp, new_feed = self._batch(train_instance) File "/home/ubuntu/darkflow/net/yolov2/data.py", line 27, in _batch img = self.preprocess(path, allobj) File "/home/ubuntu/darkflow/net/yolo/test.py", line 61, in preprocess result = imcv2_affine_trans(im) File "/home/ubuntu/darkflow/utils/im_transform.py", line 19, in imcv2_affine_trans h, w, c = im.shape AttributeError: 'NoneType' object has no attribute 'shape'

Right after parsing the dataset. Not really sure why this is happening.

[ghost]

please refer to

128

145

[beebrain]

Try to delete history file in folder net/YOLO/parse-history.txt