[rabbitmq-discuss] Installing Manamgemt plugin fails

[Prashant]

Hello
I updated my rabbitmq server and erlang and installed management
plugin ( following rabbitmq plugins docs). I run into error when am
starting rabbitmq server. it seems like management-agent is unable to
start. Doesn't give me any error that can help me diagnose the issue.
Am attaching logs

=INFO REPORT==== 31-Jan-2011::12:30:39 ===
started TCP Listener on 0.0.0.0:5672

=INFO REPORT==== 31-Jan-2011::12:30:39 ===
Management agent started.

=INFO REPORT==== 31-Jan-2011::12:30:39 ===
    application: rabbit_management_agent
    exited: {shutdown,{rabbit_mgmt_agent_app,start,[normal,[]]}}
    type: permanent

=INFO REPORT==== 31-Jan-2011::12:30:39 ===
stopped TCP Listener on 0.0.0.0:5672


=CRASH REPORT==== 31-Jan-2011::12:30:39 ===
  crasher:
    initial call: rabbit_mgmt_external_stats:init/1
    pid: <0.238.0>
    registered_name: []
    exception exit: {undef,[{rabbit_misc,now_ms,[]},
 
{rabbit_mgmt_external_stats,internal_update,1},
                            {rabbit_mgmt_external_stats,init,1},
                            {gen_server,init_it,6},
                            {proc_lib,init_p_do_apply,3}]}
      in function  gen_server:init_it/6
    ancestors: [rabbit_mgmt_agent_sup,<0.236.0>]
    messages: []
    links: [<0.237.0>]
    dictionary: []
    trap_exit: false
    status: running
    heap_size: 377
    stack_size: 24
    reductions: 127
  neighbours:

=SUPERVISOR REPORT==== 31-Jan-2011::12:30:39 ===
     Supervisor: {local,rabbit_mgmt_agent_sup}
     Context:    start_error
     Reason:     {undef,[{rabbit_misc,now_ms,[]},
                         {rabbit_mgmt_external_stats,internal_update,
1},
                         {rabbit_mgmt_external_stats,init,1},
                         {gen_server,init_it,6},
                         {proc_lib,init_p_do_apply,3}]}
     Offender:   [{pid,undefined},
                  {name,rabbit_mgmt_external_stats},
                  {mfargs,{rabbit_mgmt_external_stats,start_link,[]}},
                  {restart_type,permanent},
                  {shutdown,5000},
                  {child_type,worker}]

finally .....

starting error log
relay                                              ...done
starting
networking                                                   ...done
-- network listeners available

broker running
{"Kernel pid
terminated",application_controller,"{application_start_failure,rabbit_management_agent,
{shutdown,{rabbit_mgmt_agent_app,start,[normal,[]]}}}"}

Crash dump was written to: erl_crash.dump
Kernel pid terminated (application_controller)
({application_start_failure,rabbit_management_agent,{shutdown,
{rabbit_mgmt_agent_app,start,[normal,[]]}}})