GQRX with Funcube Dongle Pro Plus

[ik8ozv]

Hello all,
i am trying to use the Funcube Dongle Pro Plus with GQRX under Ubuntu,
but when i run it i get always the error:

audio_alsa_source
Please select another device

even if i choose Funcube Dongle V2.0 as source.
I have tried to install:

LIBTOOL
JACK
LIBHIDAPI
LIBUSB
ALSA
LIBSNDFILE
PORTAUDIO

But i still have the same error.
Please any help?
Thanks
73's de Enzo IK8OZV