[razar51]

When I try to download it with the command:

C:\Users\Team1288\Desktop\robotpy-2017.0.6>py installer.py download-opkg mjpg-streamer

I get the error:

Traceback (most recent call last):
  File "installer.py", line 1009, in <module>
    retval = main()
  File "installer.py", line 990, in main
    retval = options.cmdobj(options)
  File "installer.py", line 792, in download_opkg
    package_list = opkg.resolve_pkg_deps(options.packages)
  File "installer.py", line 185, in resolve_pkg_deps
    for results in self._toposort(pkgs):
  File "installer.py", line 217, in _toposort
    raise ValueError('Cyclic dependencies exist among these items: {}'.format(', '.join(repr(x) for x in data.items())))
ValueError: Cyclic dependencies exist among these items: ('mjpg-streamer', {'libv4l'}), ('libv4l', {'media-ctl'}), ('media-ctl', {'libv4l'})