pc_ble_driver_py.exceptions.NordicSemiException: board not found

[ibrahim123]

i am trying to run advertising.py from pc-ble-driver-py.

i am keep getting exception from 

except IndexError:
   raise NordicSemiException('board not found')

is there a special hex to load to dongle so it can be recognized 
 
note:
i am able to work with the dongle with nrf connect 

[ibrahim123]

SOLVED 

i have been sending "3" instead of "COM3"

[RedNodeLabs]

Hi,

I am getting the same error:

Traceback (most recent call last):

  File "/usr/local/bin/nrfutil", line 11, in <module>

    sys.exit(cli())

  File "/Library/Python/2.7/site-packages/click/core.py", line 764, in __call__

    return self.main(*args, **kwargs)

  File "/Library/Python/2.7/site-packages/click/core.py", line 717, in main

    rv = self.invoke(ctx)

  File "/Library/Python/2.7/site-packages/click/core.py", line 1137, in invoke

    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Library/Python/2.7/site-packages/click/core.py", line 1137, in invoke

    return _process_result(sub_ctx.command.invoke(sub_ctx))

  File "/Library/Python/2.7/site-packages/click/core.py", line 956, in invoke

    return ctx.invoke(self.callback, **ctx.params)

  File "/Library/Python/2.7/site-packages/click/core.py", line 555, in invoke

    return callback(*args, **kwargs)

  File "/Library/Python/2.7/site-packages/nordicsemi/__main__.py", line 930, in ble

    flasher = Flasher(serial_port=port, snr = jlink_snr)

  File "/Library/Python/2.7/site-packages/pc_ble_driver_py/ble_driver.py", line 1072, in __init__

    raise NordicSemiException('board not found')

pc_ble_driver_py.exceptions.NordicSemiException: board not found

when trying to use nrfutil dfu ble in OSX with a PCA10056 DK. This board is however working with the nRF Connect Tool.

Could you please help me with this issue?

Thanks