Error start the server

NavaTux <>
Tue Mar 23 19:27:26 CET 2010


fine

On Mar 23, 11:03 pm, Fred Hebert <> wrote:
> On Tue, Mar 23, 2010 at 1:19 PM, NavaTux <> wrote:
> > what is the solution for both? How it causes?
>
> For the port problem, it is simply that another service is using that
> particular port. Either kill that service/application (if you don't need it)
> or pick a different port for your application.
>
>
>
> > This error also happened when i click the URL.
>
> > CAUGHT ERROR: error-badarg
> > [{erlang,hd,[[]]},
> >  {web_index,body,0},
> >  {element_template,eval_callbacks,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2}]
> > CAUGHT ERROR: error-badarg
> > [{erlang,hd,[[]]},
> >  {web_index,body,0},
> >  {element_template,eval_callbacks,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2},
> >  {element_template,eval,2}]
>
> > The error mentioned says that the function {erlang,hd,[[]]} fails with a
>
> badarg. {erlang,hd,[[]]} is a different way to write 'erlang:hd([])'.
> Obviously, the 'hd/1' function can not return anything on empty lists.
>
> This is why it fails.
>
>
>
> > On Mar 23, 10:15 pm, Fred Hebert <> wrote:
> > > {listen,eaddrinuse} usually means the port is already used on this
> > operating
> > > system.
>
> > > On Tue, Mar 23, 2010 at 1:11 PM, NavaTux <>
> > wrote:
> > > > Eshell V5.6.5  (abort with ^G)
> > > > ()1> Recompile: ./src/pages/web_index
>
> > > > i use nitrogen framework,whenever i started my web app,http://
> > > > localhost:8000
> > > > the error shows the follwed one:
> > > > what does it mean elaborately?
> > > > what is the solution?
> > > > how to identify the errors easily ??#generic question
>
> > > > =ERROR REPORT==== 23-Mar-2010::22:05:02 ===
> > > > Failed initiating web server:
> > > > undefined
> > > > {{listen,eaddrinuse},
> > > >  {child,undefined,
> > > >        {httpd_acceptor,{0,0,0,0},8000},
> > > >        {httpd_acceptor,start_link,
> > > >                        [<0.69.0>,ip_comm,
> > > >                         {0,0,0,0},
> > > >                         8000,httpd_conf__0_0_0_0__8000,15000]},
> > > >        permanent,1000,worker,
> > > >        [httpd_acceptor]}}
>
> > > > =INFO REPORT==== 23-Mar-2010::22:05:02 ===
> > > >    application: navatest
> > > >    exited: {shutdown,{navatest_app,start,[normal,[]]}}
> > > >    type: temporary
>
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