[Help-gnunet] arm want a private key to start

[SMoratinos]

Hello,

I have just install gnunet from HEAD with javaports
In order to test the gnunet-java api

I have created an empty config file /etc/gnunet.conf

And start arm :
$ gnunet-arm -c /etc/gnunet.conf -s

I have the following output :
----------------------------
Service `arm' has been started.
oct. 31 16:15:42-222605 util-30205 ERROR Could not acquire lock on file 
`/home/gnunet/.gnunet/.hostkey': Ressource temporairement non 
disponible...
oct. 31 16:15:42-222735 util-30205 ERROR This may be ok if someone is 
currently generating a private key.
oct. 31 16:15:42-320079 util-30206 ERROR Could not acquire lock on file 
`/home/gnunet/.gnunet/.hostkey': Ressource temporairement non 
disponible...
oct. 31 16:15:42-320196 util-30206 ERROR This may be ok if someone is 
currently generating a private key.
-----------------------------


And gnunet is right !
I don't have /home/gnunet/.gnunet/.hostkey file

How can I generate a private key (the .hostkey file) ?

I can't install gnunet-gtk : https://gnunet.org/bugs/view.php?id=2605
Perhaps this is gnunet-setup who configure the key ?