Traceback (most recent call last):


 "/home/ljh/.conda/envs/new-open-mmlab/lib/python3.7/threading.py", line 917, in _bootstrap_inner

self.run()


 "/home/ljh/.conda/envs/new-open-mmlab/lib/python3.7/threading.py", line 865, in run

self._target(*self._args, **self._kwargs)


 "demo/webcam_demo.py", line 57, in show_results

frame_queue.append(np.array(frame[:, :, ::-1]))
TypeError: 'NoneType' object is not subscriptable

Traceback (most recent call last):


 "test_utils/scripts/get_target_packages_kokoro.py", line 98, in <module>

main()


 "test_utils/scripts/get_target_packages_kokoro.py", line 85, in main

changed_files = list(get_changed_files_from_pr(environment.pr))


 "test_utils/scripts/get_target_packages_kokoro.py", line 60, in get_changed_files_from_pr

yield info['filename']
TypeError: string indices must be integers
