you might also describe how you use f-spot to get the issue, f-spot-import which is the default GNOME action has this code
" # make sure it's not mounted by gvfs, otherwise we can't access the camera
# (current F-Spot version does not yet understand GIO)
gvfs-mount -u "$udi" || true"
which works fine here and should lead to no error when importing images
you might also describe how you use f-spot to get the issue, f-spot-import which is the default GNOME action has this code
" # make sure it's not mounted by gvfs, otherwise we can't access the camera
# (current F-Spot version does not yet understand GIO)
gvfs-mount -u "$udi" || true"
which works fine here and should lead to no error when importing images