Traceback (most recent call last):


 "/home/pattinson/My_Lab/Droidbot/droidbot/droidbot/device.py", line 815, in get_current_state

screenshot_path=screenshot_path)


 "/home/pattinson/My_Lab/Droidbot/droidbot/droidbot/device_state.py", line 27, in __init__

self.__assemble_view_tree(self.view_tree, self.views)


 "/home/pattinson/My_Lab/Droidbot/droidbot/droidbot/device_state.py", line 64, in __assemble_view_tree

self.view_tree = copy.deepcopy(views[0])
IndexError: list index out of range

Traceback (most recent call last):


 "/usr/lib/python3.5/multiprocessing/process.py", line 249, in _bootstrap

self.run()


 "/usr/local/lib/python3.5/dist-packages/tensorpack/dataflow/parallel_map.py", line 242, in run

dp = self.map_func(dp)


 "/workspace/xli/tensorpack/examples/FasterRCNN/data.py", line 365, in preprocess

masks.append(segmentation_to_mask(polys, im.shape[0], im.shape[1]))


 "/workspace/xli/tensorpack/examples/FasterRCNN/common.py", line 104, in segmentation_to_mask

rles = cocomask.frPyObjects(polys, height, width)


 "pycocotools/_mask.pyx", line 292, in pycocotools._mask.frPyObjects
IndexError: list index out of range
