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Infeasible solution, no superbasic variables.

Posted: Tue Feb 23, 2021 12:31 pm
by Economist7
Hi to everyone, I'm new in the forum. I'm working in GAMS, and I'm having a problem in a model. It gives me the error: unfeasible solution. There are no superbasic variables. How cani I fix it? I checked a lot of times my model, but I can't find a solution. thanks in advance.
The model is:
FINAL.gms

Re: Infeasible solution, no superbasic variables.

Posted: Wed Feb 24, 2021 5:47 am
by bussieck
There are a couple of ways to deal with infeasible models. Bruce McCarl Newsletter vol. 40 gives good recommendations on how to deal with infeasible models (see section 3 of https://www.gams.com/fileadmin/communit ... news40.pdf). This is a common situation and one needs to develop a mind set and use tools to deal with it.

Good luck
-Michaek

Re: Infeasible solution, no superbasic variables.

Posted: Thu Mar 02, 2023 5:58 pm
by SeanIreland
bussieck wrote: 3 years ago There are a couple of ways to deal with infeasible models. Bruce McCarl Newsletter vol. 40 gives good recommendations on how to deal with infeasible models (see section 3 of https://www.gams.com/fileadmin/communit ... news40.pdf). This is a common situation and one needs to develop a mind set and use tools to deal with it.

Good luck
-Michaek
Hi, I am having the same problem and cannot find a solution, the link no longer works, is there another source of information is can use to solve the problem?

Re: Infeasible solution, no superbasic variables.

Posted: Fri Mar 03, 2023 7:14 am
by Fred
A list of all McCarls newsletters can be found here.

I hope this helps!

Fred