[erlang-questions] Erlang/OTP R14B02 generating documentation from source problem

Boris Mühmer <>
Mon Mar 21 09:41:26 CET 2011


Could You please say, which OS You use?

I reported this "strange behavior" for Ubuntu 10.04 / 10.10 some time ago.


  - boris


2011/3/21 Kazuhiro Ogura <>:
> Hi,
>
> I had the same error, and after some struggles,
> finally I changed the shebang line of
> lib/erl_docgen/priv/bin/xref_mod_app.escript
> to the absolute path to escript, and it worked.
>
> -#!/usr/bin/env escript
> +#!/usr/local/bin/escript
>
> I don't know why it worked,
> so I can't tell whether this works for you or not.
>
> Sure I have xmlerl-x.y.z in the lib/ dir, and I can load xmerl in a
> normal erlang shell.
> Also what's strange is that when I manually execute the command,
> (which fails complaining about exception about xmerl:export_simple/2
> in the make process),
> it succeeds without any errors.
>
> (May be some envvar passed to script is doing something wrong?)
>
> Kazuhiro Ogura
>
> 2011/3/17 Lukas Larsson <>:
>> It seems to me like xmerl is not in the erlang install which is in your path. Check that xmerl-x.y.z is in the lib/ dir of the erlang you have in your path. or alternatively that you can load the xmerl module in a normal erlang shell.
>>
>> Lukas
>>
>> ----- Original Message -----
>> From: "Damian Dobroczyński" <>
>> To: 
>> Sent: Thursday, 17 March, 2011 11:51:39 GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna
>> Subject: [erlang-questions] Erlang/OTP R14B02 generating documentation from source problem
>>
>>
>> Hi.
>>
>> I downloaded, compiled and tried to "make docs" and "make install-docs".
>> The first went fine. The result of the latter is the following:
>>
>> escript: exception error: undefined function xmerl:export_simple/2
>>  in function  erl_eval:do_apply/5
>>  in call from erl_eval:expr/5
>>  in call from erl_eval:exprs/5
>>  in call from erl_eval:local_func/5
>>  in call from escript:interpret/4
>>  in call from escript:start/1
>>  in call from init:start_it/1
>>
>> So, I installed without docs ("make install") and then tried again. The
>> result was the same. So I removed all escript links and files that I had
>> had already (some artifacts from previous releases and such) so that I
>> had only fresh escript in the installation directory and a link in the
>> prefix (/usr/local/bin) directory. The result was the same. Can somebody
>> help me, please?
>>
>> D.
>>
>>
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