help!

[Sean Hinde]

Joao,
 
-module is a compiler directive which only has meaning within a source code
file.
 
So to have a module called demo you must first create a file called demo.erl
(it must be called this - filenames and module names are linked with Erlang)
which contains the -module(demo). entry and the source code for your module
demo.
 
The downloadable PDF of part 1 of the Erlang book covers these issues very
nicely and is a good place to start:
 
http://www.erlang.org/download/erlang-book-part1.pdf
<http://www.erlang.org/download/erlang-book-part1.pdf> 
 
Good luck,
 
Sean

-----Original Message-----
From: Joao Jr. [mailto:jj@REDACTED]
Sent: 16 February 2001 14:27
To: erlang-questions@REDACTED
Subject: help!



Hi, I'm beginner in erlang.

I can't use module in erlang, always return message error like:

 

Erlang (BEAM) emulator version 5.0.1 [threads]

Eshell V5.0.1 (abort with ^G)

1> -module(demo).

** exited: {undef,[{shell_default,module,[demo]},

{shell,local_func,4},

{erl_eval,expr,3},

{erl_eval,exprs,4},

{shell,eval_loop,2}]} **

2>

What can I do?

Thanks, Joao Jr.




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