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Tom Ayerst | 4 Jul 22:37

Trouble with OTP

Hi,

I am running Kevin Smith's Mochiweb OTP example (http://weblog.hypotheticalabs.com/?p=226) but I cannot get it to start.  Could anyone give me some hints on interpreting the error messages?  I am running it on Windows.  I am not very familiar with debugging OTP yet.

Thanks

Tom

$ erl -boot file_server-1

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_safe_sup}
             started: [{pid,<0.32.0>},
                       {name,alarm_handler},
                       {mfa,{alarm_handler,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_safe_sup}
             started: [{pid,<0.33.0>},
                       {name,overload},
                       {mfa,{overload,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_sup}
             started: [{pid,<0.31.0>},
                       {name,sasl_safe_sup},
                       {mfa,
                           {supervisor,start_link,
                               [{local,sasl_safe_sup},sasl,safe]}},
                       {restart_type,permanent},
                       {shutdown,infinity},
                       {child_type,supervisor}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_sup}
             started: [{pid,<0.34.0>},
                       {name,release_handler},
                       {mfa,{release_handler,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
         application: sasl
          started_at: nonode <at> nohost

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
         application: sasl
          started_at: nonode <at> nohost

=CRASH REPORT==== 4-Jul-2008::20:07:13 ===
  crasher:
    pid: <0.37.0>
    registered_name: []
    exception exit: {bad_return,
                        {{mime_typer_app,start,[normal,[]]},
                         {'EXIT',
                             {undef,
                                 [{mime_typer_app,start,[normal,[]]},
                                  {application_master,start_it_old,4}]}}}}
      in function  application_master:init/4
    initial call: application_master:init(<0.5.0>,<0.36.0>,
                                          {appl_data,mime_typer,
                                           [mime_typer],
                                           undefined,
                                           {mime_typer_app,[]},
                                           [mime_typer,mime_typer_app],
                                           [],infinity,infinity},
                                          normal)
    ancestors: [<0.36.0>]
    messages: [{'EXIT',<0.38.0>,normal}]
    links: [<0.36.0>,<0.5.0>]
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 377
    stack_size: 23
    reductions: 88
  neighbours:

=INFO REPORT==== 4-Jul-2008::20:07:13 ===
    application: mime_typer
    exited: {bad_return,
                {{mime_typer_app,start,[normal,[]]},
                 {'EXIT',
                     {undef,
                         [{mime_typer_app,start,[normal,[]]},
                          {application_master,start_it_old,4}]}}}}
    type: permanent
{"Kernel pid terminated",application_controller,"{application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_master,start_it_old,4}]}}}}}"}

Crash dump was written to: erl_crash.dump
Kernel pid terminated (application_controller) ({application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_


<div><p>Hi,<br><br>I am running Kevin Smith's Mochiweb OTP example (<a href="http://weblog.hypotheticalabs.com/?p=226">http://weblog.hypotheticalabs.com/?p=226</a>) but I cannot get it to start.&nbsp; Could anyone give me some hints on interpreting the error messages?&nbsp; I am running it on Windows.&nbsp; I am not very familiar with debugging OTP yet.<br><br>Thanks<br><br>Tom<br><br>$ erl -boot file_server-1<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_safe_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.32.0&gt;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,alarm_handler},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{alarm_handler,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_safe_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.33.0&gt;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,overload},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{overload,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.31.0&gt;},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,sasl_safe_sup},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {supervisor,start_link,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{local,sasl_safe_sup},sasl,safe]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,infinity},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,supervisor}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.34.0&gt;},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,release_handler},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{release_handler,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; application: sasl<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started_at: nonode <at> nohost<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; application: sasl<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started_at: nonode <at> nohost<br><br>=CRASH REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp; crasher:<br>&nbsp;&nbsp;&nbsp; pid: &lt;0.37.0&gt;<br>&nbsp;&nbsp;&nbsp; registered_name: []<br>&nbsp;&nbsp;&nbsp; exception exit: {bad_return,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {'EXIT',<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {undef,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {application_master,start_it_old,4}]}}}}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in function&nbsp; application_master:init/4<br>
&nbsp;&nbsp;&nbsp; initial call: application_master:init(&lt;0.5.0&gt;,&lt;0.36.0&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {appl_data,mime_typer,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [mime_typer],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; undefined,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mime_typer_app,[]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [mime_typer,mime_typer_app],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [],infinity,infinity},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; normal)<br>
&nbsp;&nbsp;&nbsp; ancestors: [&lt;0.36.0&gt;]<br>&nbsp;&nbsp;&nbsp; messages: [{'EXIT',&lt;0.38.0&gt;,normal}]<br>&nbsp;&nbsp;&nbsp; links: [&lt;0.36.0&gt;,&lt;0.5.0&gt;]<br>&nbsp;&nbsp;&nbsp; dictionary: []<br>&nbsp;&nbsp;&nbsp; trap_exit: true<br>&nbsp;&nbsp;&nbsp; status: running<br>&nbsp;&nbsp;&nbsp; heap_size: 377<br>
&nbsp;&nbsp;&nbsp; stack_size: 23<br>&nbsp;&nbsp;&nbsp; reductions: 88<br>&nbsp; neighbours:<br><br>=INFO REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp; application: mime_typer<br>&nbsp;&nbsp;&nbsp; exited: {bad_return,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {{mime_typer_app,start,[normal,[]]},<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {'EXIT',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {undef,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {application_master,start_it_old,4}]}}}}<br>&nbsp;&nbsp;&nbsp; type: permanent<br>
{"Kernel pid terminated",application_controller,"{application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_master,start_it_old,4}]}}}}}"}<br><br>Crash dump was written to: erl_crash.dump<br>Kernel pid terminated (application_controller) ({application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_<br><br><br></p></div>
Permalink | Reply |
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Pablo Polvorin | 4 Jul 23:16

Re: Trouble with OTP

Hi Tom,

{'EXIT',
                     {undef,
                         [{mime_typer_app,start,[normal,[]]}


looks like the interpreter can't  find that function  (mime_type_app:start/2 ).
The function is defined in the source, so probably your code path is wrong and doesn't include the .beam files that
you have compiled.
try with       
erl -pa DIR
where DIR is the directory where your compiled .beam files reside.

hope this helps



2008/7/4 Tom Ayerst <tom.ayerst <at> gmail.com>:
Hi,

I am running Kevin Smith's Mochiweb OTP example (http://weblog.hypotheticalabs.com/?p=226) but I cannot get it to start.  Could anyone give me some hints on interpreting the error messages?  I am running it on Windows.  I am not very familiar with debugging OTP yet.

Thanks

Tom

$ erl -boot file_server-1

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_safe_sup}
             started: [{pid,<0.32.0>},
                       {name,alarm_handler},
                       {mfa,{alarm_handler,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_safe_sup}
             started: [{pid,<0.33.0>},
                       {name,overload},
                       {mfa,{overload,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_sup}
             started: [{pid,<0.31.0>},
                       {name,sasl_safe_sup},
                       {mfa,
                           {supervisor,start_link,
                               [{local,sasl_safe_sup},sasl,safe]}},
                       {restart_type,permanent},
                       {shutdown,infinity},
                       {child_type,supervisor}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
          supervisor: {local,sasl_sup}
             started: [{pid,<0.34.0>},
                       {name,release_handler},
                       {mfa,{release_handler,start_link,[]}},
                       {restart_type,permanent},
                       {shutdown,2000},
                       {child_type,worker}]

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
         application: sasl
          started_at: nonode <at> nohost

=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===
         application: sasl
          started_at: nonode <at> nohost

=CRASH REPORT==== 4-Jul-2008::20:07:13 ===
  crasher:
    pid: <0.37.0>
    registered_name: []
    exception exit: {bad_return,
                        {{mime_typer_app,start,[normal,[]]},
                         {'EXIT',
                             {undef,
                                 [{mime_typer_app,start,[normal,[]]},
                                  {application_master,start_it_old,4}]}}}}
      in function  application_master:init/4
    initial call: application_master:init(<0.5.0>,<0.36.0>,
                                          {appl_data,mime_typer,
                                           [mime_typer],
                                           undefined,
                                           {mime_typer_app,[]},
                                           [mime_typer,mime_typer_app],
                                           [],infinity,infinity},
                                          normal)
    ancestors: [<0.36.0>]
    messages: [{'EXIT',<0.38.0>,normal}]
    links: [<0.36.0>,<0.5.0>]
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 377
    stack_size: 23
    reductions: 88
  neighbours:

=INFO REPORT==== 4-Jul-2008::20:07:13 ===
    application: mime_typer
    exited: {bad_return,
                {{mime_typer_app,start,[normal,[]]},
                 {'EXIT',
                     {undef,
                         [{mime_typer_app,start,[normal,[]]},
                          {application_master,start_it_old,4}]}}}}
    type: permanent
{"Kernel pid terminated",application_controller,"{application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_master,start_it_old,4}]}}}}}"}

Crash dump was written to: erl_crash.dump
Kernel pid terminated (application_controller) ({application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_



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--
--
pablo
http://ppolv.wordpress.com
---- 
<div>
<p>Hi Tom, <br><br>{'EXIT',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {undef,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{mime_typer_app,start,[normal,[]]}<br></p>
<div class="ArwC7c ckChnd">
<br>looks like the interpreter can't&nbsp; find that function&nbsp; (mime_type_app:start/2 ).<br>
The function is defined in the source, so probably your code path is wrong and doesn't include the .beam files that<br>you have compiled. <br>try with&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>erl -pa DIR <br>where DIR is the directory where your compiled .beam files reside.<br><br>hope this helps<br><br>
</div>
<br><br><div class="gmail_quote">2008/7/4 Tom Ayerst &lt;<a href="mailto:tom.ayerst <at> gmail.com">tom.ayerst <at> gmail.com</a>&gt;:<br><blockquote class="gmail_quote">
Hi,<br><br>I am running Kevin Smith's Mochiweb OTP example (<a href="http://weblog.hypotheticalabs.com/?p=226" target="_blank">http://weblog.hypotheticalabs.com/?p=226</a>) but I cannot get it to start.&nbsp; Could anyone give me some hints on interpreting the error messages?&nbsp; I am running it on Windows.&nbsp; I am not very familiar with debugging OTP yet.<br><br>Thanks<br><br>Tom<br><br>$ erl -boot file_server-1<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_safe_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.32.0&gt;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,alarm_handler},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{alarm_handler,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_safe_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.33.0&gt;},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,overload},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{overload,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.31.0&gt;},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,sasl_safe_sup},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {supervisor,start_link,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{local,sasl_safe_sup},sasl,safe]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,infinity},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,supervisor}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; supervisor: {local,sasl_sup}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started: [{pid,&lt;0.34.0&gt;},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {name,release_handler},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mfa,{release_handler,start_link,[]}},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {restart_type,permanent},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {shutdown,2000},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {child_type,worker}]<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; application: sasl<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started_at: nonode <at> nohost<br><br>=PROGRESS REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; application: sasl<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; started_at: nonode <at> nohost<br><br>=CRASH REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp; crasher:<br>&nbsp;&nbsp;&nbsp; pid: &lt;0.37.0&gt;<br>&nbsp;&nbsp;&nbsp; registered_name: []<br>&nbsp;&nbsp;&nbsp; exception exit: {bad_return,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {'EXIT',<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {undef,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {application_master,start_it_old,4}]}}}}<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in function&nbsp; application_master:init/4<br>

&nbsp;&nbsp;&nbsp; initial call: application_master:init(&lt;0.5.0&gt;,&lt;0.36.0&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {appl_data,mime_typer,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [mime_typer],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; undefined,<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {mime_typer_app,[]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [mime_typer,mime_typer_app],<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [],infinity,infinity},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; normal)<br>

&nbsp;&nbsp;&nbsp; ancestors: [&lt;0.36.0&gt;]<br>&nbsp;&nbsp;&nbsp; messages: [{'EXIT',&lt;0.38.0&gt;,normal}]<br>&nbsp;&nbsp;&nbsp; links: [&lt;0.36.0&gt;,&lt;0.5.0&gt;]<br>&nbsp;&nbsp;&nbsp; dictionary: []<br>&nbsp;&nbsp;&nbsp; trap_exit: true<br>&nbsp;&nbsp;&nbsp; status: running<br>&nbsp;&nbsp;&nbsp; heap_size: 377<br>

&nbsp;&nbsp;&nbsp; stack_size: 23<br>&nbsp;&nbsp;&nbsp; reductions: 88<br>&nbsp; neighbours:<br><br>=INFO REPORT==== 4-Jul-2008::20:07:13 ===<br>&nbsp;&nbsp;&nbsp; application: mime_typer<br>&nbsp;&nbsp;&nbsp; exited: {bad_return,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {{mime_typer_app,start,[normal,[]]},<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {'EXIT',<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {undef,<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [{mime_typer_app,start,[normal,[]]},<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {application_master,start_it_old,4}]}}}}<br>&nbsp;&nbsp;&nbsp; type: permanent<br>

{"Kernel pid terminated",application_controller,"{application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_master,start_it_old,4}]}}}}}"}<br><br>Crash dump was written to: erl_crash.dump<br>Kernel pid terminated (application_controller) ({application_start_failure,mime_typer,{bad_return,{{mime_typer_app,start,[normal,[]]},{'EXIT',{undef,[{mime_typer_app,start,[normal,[]]},{application_<br><br><br><br>_______________________________________________<br>
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Matthias Lang | 4 Jul 23:20

Re: Trouble with OTP

On Friday, July 04, Tom Ayerst wrote:

> I am running Kevin Smith's Mochiweb OTP example (
> http://weblog.hypotheticalabs.com/?p=226) but I cannot get it to start.
> Could anyone give me some hints on interpreting the error messages?  I am
> running it on Windows.  I am not very familiar with debugging OTP yet.

I know nothing about mochiweb specifically, but

>                          {'EXIT',
>                              {undef,
>                                  [{mime_typer_app,start,[normal,[]]},
>                                   {application_master,start_it_old,4}]}}}}

this means that the function mime_typer_app:start(normal, []) couldn't
be called.

Without knowing anything about your level of experience, my
stab-in-the-dark guess would be that you haven't compiled the code.

Another likely reason would be a broken code path. Try

  code:get_path().

A less likely but possible reason is that you can't compile the code
because of a broken or outdated erlang install.

Matt
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