error

Get:27 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main libapparmor-perl amd64 2.8.95~2430-0ubuntu5.3 [26.8
 kB]
Get:28 http://us.archive.ubuntu.com/ubuntu/ trusty-updates/main apparmor amd64 2.8.95~2430-0ubuntu5.3 [319 kB]
Get:29 http://us.archive.ubuntu.com/ubuntu/ trusty/universe mosquitto amd64 0.15-2ubuntu1 [59.5 kB]
Fetched 6449 kB in 6s (952 kB/s)
Building mosquitto
Staging mosquitto
Snapping mosquitto
py3versions -d
Traceback (most recent call last):
  File "/usr/bin/snapcraft", line 33, in <module>
    snapcraft.main.main()
  File "/usr/lib/python3/dist-packages/snapcraft/main.py", line 148, in main
    args.func(args)
  File "/usr/lib/python3/dist-packages/snapcraft/cmds.py", line 98, in assemble
    snap(args)
  File "/usr/lib/python3/dist-packages/snapcraft/cmds.py", line 91, in snap
    meta.create(config.data, arches)
  File "/usr/lib/python3/dist-packages/snapcraft/meta.py", line 56, in create
    config_data['icon'] = _copy(meta_dir, config_data['icon'])
  File "/usr/lib/python3/dist-packages/snapcraft/meta.py", line 102, in _copy
    shutil.copytree(relpath, new_relpath)
  File "/usr/lib/python3.4/shutil.py", line 303, in copytree
    os.makedirs(dst)
  File "/usr/lib/python3.4/os.py", line 237, in makedirs
    mkdir(name, mode)
FileExistsError: [Errno 17] File exists: '/home/ccfiel/snappy/snapcraft/examples/mosquitto/snap/meta/'
ccfiel@gaisano:~/snappy/snapcraft/examples/mosquitto$