Can't find file

[Aristide GIULIANO]

Morning,

I'm a PhD student of University of Salerno. I have problem with AMPL software.

When I'm in AMPL console I write my code, for example:

ampl: model 3iter_261115.mod

but the software shows me this message:

 

Can't find file "3iter_261115.mod"

context: model >>> 3iter_261115.mod <<<

 

What I have to do to solve this problem?

Thanks.

--

Aristide Giuliano
PhD in Chemical Engineering
University of Salerno
phone: +39 320 25 15 454
mail: agiu...@unisa.it - aristide...@sensesquare.eu

[Robert Fourer]

AMPL is looking for your file 3iter_261115.mod the current folder or directory, but is not finding the file there. If you are using Windows, be sure that the file is not actually named something different like 3iter_261115.mod.txt (right click the file icon, select Properties, and check that the "Type of file" is "MOD file (.mod)" and not something else). Beyond that it is hard to be helpful without more information, however:

-- Are you using command-line AMPL, or the AMPL IDE?
-- What type of computer are you using?
-- What is the folder/directory where 3iter_261115.mod is located?
-- What is the folder/directory where you installed your AMPL files?

Bob Fourer
am...@googlegroups.com

=======

[Aristide GIULIANO]

Morning,

I'm a PhD student of University of Salerno. I have problem with AMPL software.

When I'm in AMPL console I write my code, for example:

ampl: model 3iter_261115.mod

but the software shows me this message:

 

Can't find file "3iter_261115.mod"

context: model >>> 3iter_261115.mod <<<

 

What I have to do to solve this problem?

Thanks.

 

[Aristide GIULIANO]

I resolved the problem. I'm using AMPL IDE.

But, now I can't use AMPL-cplex because this sentence appears: "Cannot invoke cplexamp: no such program."

Where I make a mistake?

I am attaching the screenshot of my screen.

Thanks.

--

[Victor Zverovich]

If you are using the CPLEX solver distributed by AMPL you should replace "cplexamp" with "cplex".

HTH,

Victor

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[Aristide GIULIANO]

Also if I write "option solver cplex" appears: "Cannot invoke cplexamp: no such program."

What I have to do??

Thanks.

Aristide

[Robert Fourer]

If you see "Cannot invoke cplexamp" then the solver option is still being set to cplexamp. If you are running a script (run file) then "option solver cplexamp;" may be appearing after "option solver cplex;" and overriding the solver setting. Or "option solver cplexamp;" may appear in your model file or data file.

Probably you can fix this problem by searching for (and removing) all references to "cplexamp" in all your files. If you still get the "Cannot invoke" message then try giving the command "option solver cplex;" immediately before your first "solve".

Bob Fourer
am...@googlegroups.com

=======

From: am...@googlegroups.com [mailto:am...@googlegroups.com] On Behalf Of Aristide GIULIANO
Sent: Monday, May 30, 2016 1:44 AM
To: Ampl
Subject: [AMPL 12037] Re: Can't find file
Importance: High

[bnmou...@gmail.com]

hello,

i faced the same problem and to solve it, i copied the files directory then paste it in the "AMPL IDE" current directory then include the file name in console.

BR,