[Coin-ipopt] ASL error message: "solver cannot handle CLP extensions" ?

[Andreas Waechter]

Hi David,

I don't know of such an editor, but maybe someone else reading the mailing 
list does.

I know that Dominique Orban has written some AMPL mode files for emacs and 
vim:

http://www.mgi.polymtl.ca/dominique.orban/ampl-modes.html

I hope this helps,

Andreas

On Thu, 31 May 2007, David Elixmann wrote:

> Ah, okay...
>
> Thanks!
>
> You don't by any chance know of a decent text editor that can do syntax 
> checking for AMPL? That would save me so much hassle... :-)
>
> Best regards,
>
> David
>
>
>
> ----- Original Message ----- From: "Andreas Waechter" 
> <andreasw at watson.ibm.com>
> To: "David Elixmann" <david.elixmann at gmx.net>
> Cc: <coin-ipopt at list.coin-or.org>
> Sent: Wednesday, May 30, 2007 5:51 PM
> Subject: Re: [Coin-ipopt] ASL error message: "solver cannot handle CLP 
> extensions" ?
>
>
>> Hi David,
>> 
>> I think this messages means, that Ipopt cannot handle "Constraint Logic 
>> Programming" constraints.
>> 
>> This message shows up when you forget to have a "=", "<=", or ">=" for a 
>> constraint in your AMPL model.
>> 
>> I hope this helps,
>> 
>> Andreas
>> 
>> On Wed, 30 May 2007, David Elixmann wrote:
>> 
>>> Hello,
>>> 
>>> I'm trying to solve an AMPL model, and IPOPT gives me the error message:
>>> 
>>>   ASL error message: "solver cannot handle CLP extensions"
>>> 
>>> What does that error message mean? What is a CLP extension, and how can I 
>>> avoid it?
>>> 
>>> The model solved just fine with IPOPT, until I commented out some 
>>> equations. Then this error message appeared. I am using Ipopt version 
>>> 3.2.4.
>>> 
>>> Best regards,
>>> 
>>> David Elixmann
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>
>