[erlang-questions] undefined function lib_chan:start/0

[Harit Himanshu]

I am learning Erlang from Joe's book and one of the thing he teaches is
about socket programming.
His code example runs like

1>* kvs:start().*

true

2>* lib_chan:start_server().*

Starting a port server on 1234...

true

I try to do the same thing with code he provided
-module(mod_name_server).
-author("harith").

%% API
-export([start_me_up/3]).

start_me_up(MM, _ArgsC, _ArgsS) ->
  loop(MM).

loop(MM) ->
  receive
    {chan, MM, {store, K, V}} ->
      kvs:store(K, V),
      loop(MM);
    {chan, MM, {lookup, K}} ->
      MM ! {send, kvs:lookup(K)},
      loop(MM);
    {chan_closed, MM} ->
      true
  end.


But when I run, I see following

1> c(kvs).

{ok,kvs}

2> c(mod_name_server).

{ok,mod_name_server}

3> kvs:start().

true

4> lib_chan:start().

** exception error: undefined function lib_chan:start/0

5> lib_chan_mm:start().

** exception error: undefined function lib_chan_mm:start/0

6>


I even tried for lib_chan_mm, but no luck

What is going wrong here?

Thank you
+ Harit Himanshu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20150124/407d2edb/attachment.htm>