[erlang-questions] application:get_env return undefined

Bengt Kleberg <>
Wed Jan 9 14:45:39 CET 2013


Greetings,

Is this not the problem that the file app.config must have .config
extension on the file itself, but must not have .config extension on the
command line ("-config app")?


bengt

On Wed, 2013-01-09 at 19:13 +0600, Alexander 0xAX wrote:
> Hello,
> 
> 
> 
> I have simple test application with test.app.src file, test_app.erl
> and test_sup.erl
> 
> 
> Also i want to read config in my application. I have app.config:
> 
> 
> [
>  {my_app_config, 
>   [{key1, "val"}]}
> ].
> 
> 
> I run my application:
> 
> 
> erl -boot start_sasl -config app.config -s test_app
> 
> 
> And now, after application successful starting i try to read my
> config:
> 
> 
> >application:get_env(test_app, my_app_config).
> undefined
> 
> 
> Why? How can i correctly read config file?
> 
> 
> Thank you.
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> 
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