This looks wrong to me. Are you 100% sure this is the code you are running ?
Your code clearly states nchnls = 1, but the error message says that
it's trying to create 2 output channels.
You could try to edit the code, replacing
out     a1
with
outs     a1,a1
And see if that helps.

To test if you are indeed editing the same code as the one you are
running, try writing something clearly wrong, like
outsssss a1,a1

Oeyvind

2008/12/11 cochedelaferte <Serge.Coche@free.fr>:
>
> Hi all,
>
>
> Here probably a trivial question i ask : trying to play the turorial files,
> i get with 101.orc :
>
> out inconsistent with global nchnls (2); replaced with outs
> error: insufficient required arguments, line 26;
>
> The .orc related content is :
>
> sr              =               44100
>
> kr              =               4410
>
> ksmps   =               10
>
> nchnls  =               1
>
>
>
>                instr   101
>
> a1      oscil   10000, 440, 1
>
>        out     a1
>
>                endin
>
>
>
> - most other tutorial files, including more complex instruments, works fine
> for me. Can that all mean that i missed something osci1 related in my
> general Csound build ?
>
>
> Cheers,
>
> Sergio
>
>
>
>
> --
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>
>
>
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