Traceback (most recent call last):


 "/srv/homeassistant/lib/python3.8/site-packages/homeassistant/components/traccar/device_tracker.py", line 262, in import_device_data

for dev in self._api.devices:
TypeError: 'NoneType' object is not iterable

Traceback (most recent call last):


 "/home/fco/coreference/bug.py", line 15, in <module>

instance = reader.text_to_instance(sentences)


 "/home/fco/anaconda3/envs/coref/lib/python3.8/site-packages/allennlp_models/coref/dataset_readers/preco.py", line 94, in text_to_instance

for cluster in gold_clusters:
TypeError: 'NoneType' object is not iterable
