Netifaces ... error

Hello

I try to install and configure home assistant on a synology 115J with arduino pluged in usb

I make the install I can see the frontend.
I have one message :

The following components and platforms could not be set up:

Please check your config.

I check the log and a see that :
INFO (Thread-3) [homeassistant.util.package] Attempting install of netdisco==1.2.4
but when Itry to install it
/volume1/@appstore/py3k/usr/local/bin/python3 -m pip install netdisco==1.2.4

I have this message : Running setup.py install for netifaces … error

Did you have any subjection ?

Another question when I restart Home assistant with
./hass-daemon start

I must waiting a few minutes (maybe 5 or 8) to have the frontend