Traceback (most recent call last):

 "multiprocessing\process.pyc", line 258, in _bootstrap

 "overviewer_core\dispatcher.pyc", line 262, in run

 "<string>", line 2, in put

 "multiprocessing\managers.pyc", line 758, in _callmethodIOError: [Errno 232] The pipe is being closed
Traceback (most recent call last):


 "main_train.py", line 72, in <module>

for image_set in image_sets]


 "lib/data_utils/load_data.py", line 29, in load_proposal_roidb

roidb = imdb.gt_roidb()


 "lib/dataset/pascal_voc.py", line 105, in gt_roidb

gt_roidb = [self.load_pascal_annotation(index) for index in self.image_set_index]


 "lib/dataset/pascal_voc.py", line 168, in load_pascal_annotation

cls = class_to_index[obj.find('name').text.lower().strip()]
KeyError: 'yanhuo'
