Tutorial Question What did I do wrong?

[Brian Herman]

irb(main):005:0> flock.select(nil, :follows, 1).to_a

Flock::Edges::FlockDB::Client::TransportException: Flock::Edges::FlockDB::Client::TransportException

from /usr/local/share/gems/gems/thrift-0.9.0/lib/thrift/transport/socket.rb:111:in `read'

from /usr/local/share/gems/gems/thrift-0.9.0/lib/thrift/transport/buffered_transport.rb:82:in `read_into_buffer'

from /usr/local/share/gems/gems/thrift_client-0.9.2/lib/thrift_client/server.rb:82:in `read_into_buffer'

from /usr/local/share/gems/gems/thrift-0.9.0/lib/thrift/protocol/binary_protocol.rb:190:in `read_i32'

from /usr/local/share/gems/gems/thrift-0.9.0/lib/thrift/protocol/binary_protocol.rb:116:in `read_message_begin'

from /usr/local/share/gems/gems/thrift-0.9.0/lib/thrift/client.rb:45:in `receive_message'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/gen-rb/flock_d_b.rb:169:in `recv_select'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/gen-rb/flock_d_b.rb:161:in `select'

from /usr/local/share/gems/gems/thrift_client-0.9.2/lib/thrift_client/abstract_thrift_client.rb:165:in `block in handled_proxy'

from /usr/local/share/gems/gems/thrift_client-0.9.2/lib/thrift_client/abstract_thrift_client.rb:146:in `ensure_socket_alignment'

from /usr/local/share/gems/gems/thrift_client-0.9.2/lib/thrift_client/abstract_thrift_client.rb:165:in `handled_proxy'

from /usr/local/share/gems/gems/thrift_client-0.9.2/lib/thrift_client/abstract_thrift_client.rb:53:in `select'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operations/select_operation.rb:31:in `get_results'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operations/select_operation.rb:40:in `block in operation'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operation.rb:48:in `call'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operation.rb:48:in `get_results'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operation.rb:22:in `current_page'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operation.rb:77:in `next?'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operation.rb:62:in `each'

from /usr/local/share/gems/gems/flockdb-0.7.1/lib/flock/operations/select_operation.rb:4:in `each'

from (irb):5:in `to_a'

from (irb):5

from /usr/bin/irb:12:in `<main>'irb(main):006:0> 

irb(main):007:0* flock.select(nil, :follows, 1)

=> #<Flock::SimpleOperation:0x000000032c9a90 @client=#<Flock::Client:0x00000002f87d28 @graphs={:follows=>1, :blocks=>2}, @service=<Flock::Service(Flock::Edges::FlockDB::Client) @current_server=>>, @service=<Flock::Service(Flock::Edges::FlockDB::Client) @current_server=>, @term=#<Flock::QueryTerm:0x000000032c9bf8 @graphs={:follows=>1, :blocks=>2}, @source=nil, @graph=1, @destination=1, @states=[]>>

irb(main):008:0> 

I can see the object is there but the to_a function doesn't work where did I fly off to go wrong?