[chef] error in create cookbook for openstack using fog

[< >]

Hi,

I am trying  to create chef cookbook for open stack using Fog services. I
trying to delete volume snapshot using fog method ,

create a connection
conn = Fog::Compute.new({
  :provider           => :openstack,
  :openstack_api_key  => "xxx",
  :openstack_username => "xxx",
  :openstack_auth_url => "http://192.168.1.200:5000/v2.0/tokens"})

vol_id =3
del_snapshot=conn.delete_snapshot(vol_id)
   puts del_snapshot


but it shows error like
/usr/lib/ruby/gems/1.8/gems/excon-0.16.10/lib/excon/connection.rb:292:in
`request_kernel': Fog::Compute::OpenStack::NotFound
(Fog::Compute::OpenStack::NotFound)
        from
/usr/lib/ruby/gems/1.8/gems/excon-0.16.10/lib/excon/connection.rb:103:in
`request'
        from
/usr/lib/ruby/gems/1.8/gems/fog-1.7.0/lib/fog/core/connection.rb:21:in
`request'
        from
/usr/lib/ruby/gems/1.8/gems/fog-1.7.0/lib/fog/openstack/compute.rb:300:in
`request'
        from
/usr/lib/ruby/gems/1.8/gems/fog-1.7.0/lib/fog/openstack/requests/compute/delete_snapshot.rb:10:in
`delete_snapshot'
        from del_snap.rb:19


I used fog to call opens tack  for more operations its worked but now I get
this error for to delete volume snapshot , please send any solution as soon as
possible.

Thanks and Regards,
Ganesan.A