Error: ERROR: The PROTOBUF client protocol is no longer supported

[jricardovg]

Guys before all thanks for this library! Seems to be really simple to use, and is really useful.

I having some issues using it,

I check my RethinkDB and is running correctly

$ nc localhost 28015 -v
found 0 associations
found 1 connections:
     1: flags=82<CONNECTED,PREFERRED>
    outif lo0
    src ::1 port 56736
    dst ::1 port 28015
    rank info not available
    TCP aux info available
Connection to localhost port 28015 [tcp/*] succeeded!

$ erl -pa ebin -pa deps/*/ebin 
Erlang/OTP 18 [erts-7.1] [source] [64-bit] [smp:8:8] [async-threads:10] [hipe] [kernel-poll:false] [dtrace]

Eshell V7.1  (abort with ^G)
1>

1>  lethink:start().
ok

2> application:set_env(lethink, timeout, 60000).
ok

3> Error: ERROR: The PROTOBUF client protocol is no longer supported
^@
** exception error: no match of right hand side value {error,{'EXIT',{{badmatch,{error,{{badmatch,{error,<<"ERROR: The PROTOBUF client protocol is no longer supported\n"...>>}},
                                                                                        [{lethink_worker,init,1,
                                                                                                         [{file,"src/lethink_worker.erl"},{line,47}]},
                                                                                         {gen_server,init_it,6,[{file,"gen_server.erl"},{line,328}]},
                                                                                         {proc_lib,init_p_do_apply,3,
                                                                                                   [{file,"proc_lib.erl"},{line,240}]}]}}},
                                                                      [{lethink_worker,start_link,2,
                                                                                       [{file,"src/lethink_worker.erl"},{line,27}]},
                                                                       {supervisor,do_start_child_i,3,
                                                                                   [{file,"supervisor.erl"},{line,359}]},
                                                                       {supervisor,handle_call,3,
                                                                                   [{file,"supervisor.erl"},{line,384}]},
                                                                       {gen_server,try_handle_call,4,
                                                                                   [{file,"gen_server.erl"},{line,629}]},
                                                                       {gen_server,handle_msg,5,
                                                                                   [{file,"gen_server.erl"},{line,661}]},
                                                                       {proc_lib,init_p_do_apply,3,
                                                                                 [{file,"proc_lib.erl"},{line,240}]}]}}}
     in function  lethink:'-add_pool/3-lc$^0/1-0-'/4 (src/lethink.erl, line 66)
     in call from lethink:add_pool/3 (src/lethink.erl, line 65)

Can be maybe my RethinkDB version ?
I'm using

$ rethinkdb -v
rethinkdb 2.2.3-1 (CLANG 7.0.2 (clang-700.1.81))

Thanks.

[taybin]

This project never upgraded to the new JSON protocol format. Without that upgrade, it won't work with the latest versions of rethink server. I don't currently have time to make this change myself.