[erlang-questions] Can't create schema in Mnesia

Bob Ippolito <>
Sun Jan 19 03:32:47 CET 2014


Rename the module to something other than mnesia, there's a flat module
namespace and only one module named mnesia can be loaded at a time.

On Saturday, January 18, 2014, Yves S. Garret <>
wrote:

> Hello all,
>
> I have the following code:
> http://bin.cakephp.org/view/2135184996
>
> When I compile and reload the records, this is what happens:
>
> 14> c(mnesia).
> {ok,mnesia}
> 15> rr("records.hrl").
> [planemo,tower]
> 16> mnesia:setup().
> ** exception error: undefined function mnesia:create_schema/1
>      in function  mnesia:setup/0 (mnesia.erl, line 25)
>
> The function _does_ exist in the mnesia module.  I checked the docs and
> I'm running 16B03, so it's there.  But why this error?
>
> Also, I have an another question.  Lets say I'm testing some code and I
> comment out where I'm calling a function (located in the same file.)  How
> can I tell the compiler to not worry about this file not being called?  I
> know I can for variables such as _Variable, but methods?
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20140118/491a0535/attachment.html>


More information about the erlang-questions mailing list