[rabbitmq-discuss] Error : could_not_start_listener... rabbit_web_dispatch_su

[gopram at hushmail.com]

Hi,

I am trying RabbitMQ for the first time. installed latest rabbitmq
version 3.0.4 and installed latest erlang separately. 

i  could start my rabbitmq-server successfully, but after enabling the
 rabbitmq-management plugin it throws below error and fails to start.
there is no configuration(rabbitmq.config/rabbitmq-env.conf) file by
default and i did not create any. 

===========================================
File : mymachine-sasl.log
--------------------------
=SUPERVISOR REPORT==== 12-Apr-2013::10:26:14 ===
     Supervisor: {local,rabbit_web_dispatch_sup}
     Context:    child_terminated
     Reason:     {could_not_start_listener,
                  [{port,55672},{ignore_in_use,true}],
                  {'EXIT',
                   {undef,
                    [{lists,keyfind,
                      [name,1,
                       [{loop,
                         {mochiweb_http,loop,
                          [#Fun]}},
                        {name,rabbit_web_dispatch_sup_55672},
                        {port,55672}]]},
                     {mochilists,is_defined,2},
                     {mochilists,set_default,2},
                     {lists,foldl,3},
                     {mochiweb_http,start,1},
                     {supervisor,do_start_child,2},
                     {supervisor,handle_start_child,2},
                     {supervisor,handle_call,3}]}}}
     Offender:   [{pid,},
                  {name,rabbit_web_dispatch_registry},
                  {mfa,{rabbit_web_dispatch_registry,start_link,[]}},
                  {restart_type,transient},
                  {shutdown,5000},
                  {child_type,worker}]
=CRASH REPORT==== 12-Apr-2013::10:26:14 ===
  crasher:
    pid: 
    registered_name: []
    exception exit: {bad_return,
                     {{rabbit_mgmt_app,start,[normal,[]]},
                      {'EXIT',
                       {{could_not_start_listener,
                         [{port,55672},{ignore_in_use,true}],
                         {'EXIT',
                          {undef,
                           [{lists,keyfind,
                             [name,1,
                              [{loop,
                                {mochiweb_http,loop,
                                 [#Fun]}},
                               {name,rabbit_web_dispatch_sup_55672},
                               {port,55672}]]},
                            {mochilists,is_defined,2},
                            {mochilists,set_default,2},
                            {lists,foldl,3},
                            {mochiweb_http,start,1},
                            {supervisor,do_start_child,2},
                            {supervisor,handle_start_child,2},
                            {supervisor,handle_call,3}]}}},
                        {gen_server,call,
                         [rabbit_web_dispatch_registry,
                          {add,rabbit_mgmt_redirect,
                           [{port,55672},{ignore_in_use,true}],
                           #Fun,
                           #Fun,
                           {[],"Redirect to port 15672"}},
                          infinity]}}}}}
      in function  application_master:init/4
    initial call: application_master:init/4
    ancestors: []
    messages: [{'EXIT',,normal}]
    links: [,]
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 610
    stack_size: 23
    reductions: 130
  neighbours:
==================================================

Thanks for your help in advance
-
Ram
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