(amd64)ubuntu@localhost:~$ snappy config webcam-webui
config failed with: 'Traceback (most recent call last):
  File "/apps/webcam-webui.sideload/1/meta/hooks/config", line 44, in get_config
    with open(config_file) as f:
FileNotFoundError: [Errno 2] No such file or directory: '/var/lib/apps/webcam-webui.sideload/1/configuration'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/apps/webcam-webui.sideload/1/meta/hooks/config", line 51, in <module>
    main()
  File "/apps/webcam-webui.sideload/1/meta/hooks/config", line 20, in main
    yaml.dump(get_config(config_file), stream=sys.stdout, default_flow_style=False)
  File "/apps/webcam-webui.sideload/1/meta/hooks/config", line 47, in get_config
    return set_config(config_file)
  File "/apps/webcam-webui.sideload/1/meta/hooks/config", line 36, in set_config
    with open(config_file, 'w') as f:
PermissionError: [Errno 13] Permission denied: '/var/lib/apps/webcam-webui.sideload/1/configuration'
' (exit status 1)