GAMS World Forum

Hi Fred thank you
Yes I have a file which ends with .lst in the same file with my gms file. But when I click on it, gives me a mini black screen like cmd.exe and it disappears quickly.

Hi guys!

I accidentally close a lst file, how can i bring it back? Cause I run my model for hours and I do not want to do it again. Also I could not find it from last files section.

Thank you Fred, I solved the question.

I can remove my question, if it is possible.

Sorry,

see in attached!

Hi folks. I am dealing with this error but I could not find the related problematic part because the Gams is showing me wrong line for the error. Could you please help me how can i solve this issue and run my model? sets i /1*10/; alias(i,j); sets spr /1*10/; sets k 'objective functions' /maxP, minc...

Hi everyone I am working on a model which basically a knapsack problem. It picks different i's and allocates stuffs to the i's. The model is working and I can see the which i's are selected for allocation. I also have another variable which calculates the total mass of each allocated i's. And I want...

Hi guys I have a problem with symbol declaration. I could not understand what is the problem. sets i /1*10/; alias(i,j); sets k /1*10/; binary variable x(i) y(k) ; parameter a(i) x-coordinate of x(i) / $call xls2gms r=a2:b11 i=sample.xlsx o=koordinatx.inc $include koordinatx.inc /; parameter b(i) y-...

GAMS 22.5 version says this error but I also tried it on newest GAMS version to see what will say and it worked. But I am currently working on the old versio, how can i solve this do you think?

Hi everyone! I am running a model and there is a dollar control option ($ifThen) inside it. My old version GAMS says Error 210 and Unknown dollar control option. valid are - on/offmargin on/offdollar on/offsymlist on/offuellist on/offsymxref on/offuelxref on/offinline on/offnestcom on/offeolcom on/o...