Traceback (most recent call last):


 "tiler.py", line 223, in <module>

main()


 "tiler.py", line 216, in main

tiles = load_tiles(tiles_paths)


 "tiler.py", line 85, in load_tiles

tile = read_image(os.path.join(path, tile_name))


 "tiler.py", line 34, in read_image

if img.shape[2] == 3:
AttributeError: 'NoneType' object has no attribute 'shape'

Traceback (most recent call last):


 "/home/vipul/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa_core/training/interactive.py", line 1206, in record_messages

_plot_trackers(sender_ids, plot_file, endpoint)


 "/home/vipul/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa_core/training/interactive.py", line 1151, in _plot_trackers

max_history=2)


 "/home/vipul/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa_core/training/visualization.py", line 448, in visualize_neighborhood

_merge_equivalent_nodes(graph, max_history)


 "/home/vipul/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa_core/training/visualization.py", line 203, in _merge_equivalent_nodes

graph.nodes(data=True)[i])


 "/home/vipul/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa_core/training/visualization.py", line 170, in _transfer_style

clazzes = source.get("class", "")
AttributeError: 'tuple' object has no attribute 'get'
