[libvirt-users] Cannot create a volume

Hi all, I'm trying to create a new volume in a netfs pool. The pool works correctly and it is active. If I try to create the volume from the virt-manager GUI nothing happens. While if I use virsh this is the result. *virsh # pool-list * *Name State Autostart * *-----------------------------------------* *routers active yes * * * *virsh # vol-create-as routers namevol 2G* *error: Failed to create vol vr1* *error: cannot create path '/var/lib/libvirt/images/routers/namevol': Invalid argument* What am I missing? Thanks for your help! Daniele