ValueError: No re-enumerated DFU device found

[Robopiyf]

entering dfu mode
Traceback (most recent call last):
File "dfu_windows.py", line 235, in
main()
File "C:\Users\HP\AppData\Local\Programs\Python\Python36\lib\site-packages\click\core.py", line 829, in call
return self.main(*args, **kwargs)
File "C:\Users\HP\AppData\Local\Programs\Python\Python36\lib\site-packages\click\core.py", line 782, in main
rv = self.invoke(ctx)
File "C:\Users\HP\AppData\Local\Programs\Python\Python36\lib\site-packages\click\core.py", line 1066, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\Users\HP\AppData\Local\Programs\Python\Python36\lib\site-packages\click\core.py", line 610, in invoke
return callback(*args, **kwargs)
File "dfu_windows.py", line 226, in main
with dev:
File "dfu_windows.py", line 108, in enter
raise ValueError('No re-enumerated DFU device found')
ValueError: No re-enumerated DFU device found

[Gavin-00]

I also encounter this problem

[Shulyaka]

Are you using a powered USB hub?