C:\Users\Michael\Downloads\gdp-master>gdp.py -d atmega328p -t avrispmkii -i isp erase
GDP starting to execute commands.
Traceback (most recent call last):
  File "C:\Users\Michael\Downloads\gdp-master\gdp.py", line 20, in <module>
    main()
  File "C:\Users\Michael\Downloads\gdp-master\gdp.py", line 16, in main
    sys.exit(interface.parse_arguments(sys.argv))
  File "C:\Users\Michael\Downloads\gdp-master\core\interface_cli.py", line 119,
in parse_arguments
    session.open()
  File "C:\Users\Michael\Downloads\gdp-master\core\session.py", line 70, in open

    self.tool.open()
  File "C:\Users\Michael\Downloads\gdp-master\tools\tool_atmel_avrispmkii.py", l
ine 56, in open
    self.transport.open()
  File "C:\Users\Michael\Downloads\gdp-master\transports\transport_jungousb.py",
 line 71, in open
    self.dev_handle = self._find_device()
  File "C:\Users\Michael\Downloads\gdp-master\transports\transport_jungousb.py",
 line 48, in _find_device
    return found_devices.keys()[0]
IndexError: list index out of range