57 Errors running GAMS sample model

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Bryan Arguello

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Oct 17, 2013, 10:39:51 AM10/17/13

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Hi all,

I just installed gams onto my machine and tried running the sample gams program found here: http://www.gams.com/docs/example.htm

I get the following output which I would not expect from a model on the GAMS site:

GAMS 24.1.3 r41464 Released Jul 26, 2013 XXX-DEG Mac x86_64/Darwin 10/17/13 09:32:51 Page 1

G e n e r a l A l g e b r a i c M o d e l i n g S y s t e m

C o m p i l a t i o n

1 {\rtf1\ansi\ansicpg1252\cocoartf1187\cocoasubrtf340

**** $409

2 {\fonttbl\f0\fmodern\fcharset0 Courier;}

**** $408

3 {\colortbl;\red255\green255\blue255;}

**** $409 $409 $408

4 \margl1440\margr1440\vieww21140\viewh12000\viewkind0

**** $409

5 \deftab720

6 \pard\pardeftab720

8 \f0\fs24 \cf0 SETS\

**** $2

9 I canning plants / SEATTLE, SAN-DIEGO /\

**** $409

10 J markets / NEW-YORK, CHICAGO, TOPEKA / ;\

**** $409

11 PARAMETERS\

**** $2

12 A(I) capacity of plant i in cases\

13 / SEATTLE 350\

**** $334

14 SAN-DIEGO 600 /\

**** $409

15 B(J) demand at market j in cases\

16 / NEW-YORK 325\

17 CHICAGO 300\

18 TOPEKA 275 / ;\

**** $409

19 TABLE D(I,J) distance in thousands of miles\

**** $120

20 NEW-YORK CHICAGO TOPEKA\

**** $338

21 SEATTLE 2.5 1.7 1.8\

**** $220 $221 $221 $221,338

22 SAN-DIEGO 2.5 1.8 1.4 ;\

**** $221 $221 $221 $221,338,338

23 SCALAR F freight in dollars per case per thousand miles /90/ ;\

**** $172 $1,225,1,226,1,226,1,225,300

24 PARAMETER C(I,J) transport cost in thousands of dollars per case ;\

**** $409

25 C(I,J) = F * D(I,J) / 1000 ;\

**** $409

26 VARIABLES\

**** $2

27 X(I,J) shipment quantities in cases\

28 Z total transportation costs in thousands of dollars ;\

**** $409

29 POSITIVE VARIABLE X ;\

**** $409

30 EQUATIONS\

**** $2

31 COST define objective function\

GAMS 24.1.3 r41464 Released Jul 26, 2013 XXX-DEG Mac x86_64/Darwin 10/17/13 09:32:51 Page 2

G e n e r a l A l g e b r a i c M o d e l i n g S y s t e m

C o m p i l a t i o n

32 SUPPLY(I) observe supply limit at plant i\

33 DEMAND(J) satisfy demand at market j ;\

**** $409

34 COST .. Z =E= SUM((I,J), C(I,J)*X(I,J)) ;\

**** $409

35 SUPPLY(I) .. SUM(J, X(I,J)) =L= A(I) ;\

**** $409

36 DEMAND(J) .. SUM(I, X(I,J)) =G= B(J) ;\

**** $409

37 MODEL TRANSPORT /ALL/ ;\

**** $409

38 SOLVE TRANSPORT USING LP MINIMIZING Z ;\

**** $257,409

39 }

GAMS 24.1.3 r41464 Released Jul 26, 2013 XXX-DEG Mac x86_64/Darwin 10/17/13 09:32:51 Page 3

G e n e r a l A l g e b r a i c M o d e l i n g S y s t e m

Error Messages

1 Real number expected

2 Identifier expected

120 Unknown identifier entered as set

172 Element is redefined

220 Partial overlapping column adjusted

221 Total overlapping column ignored

224 Overlapping entry ignored

225 Floating entry ignored

226 Multiple entry ignored

257 Solve statement not checked because of previous errors

300 Remaining errors not printed for this line

334 Illegal data following a data element - rest ignored

338 Unique element expected - symbol was not an element

and the following text will be skipped until a proper

symbol is found to recover. Remember that an UNQUOTED

element has to start with a letter or digit

followed by letters, digits, '+', '-' or '_'. The length

is limited to 63 characters. The following words are

reserved (starting symbols of a GAMS statement) and cannot

be used for UNQUOTED set elements:

ABORT, ACRONYM(S), ALIAS, BINARY, DISPLAY, ELSE

EQUATION(S), EXECUTE, FILE(S), FOR, FREE, IF, INTEGER, LOOP

MODEL(S), NEGATIVE, OPTION(S), PARAMETER(S)

POSITIVE, PROCEDURE(S), PUT, PUTCLEAR, PUTCLOSE, PUTHD

PUTPAGE, PUTTL, SCALAR(S), SEMICONT, SET(S), SOS1, SOS2

TABLE, VARIABLE(S), WHILE

QUOTED elements can contain any character. Single and

double quotes can be used (starting and ending quote have

to match).

408 Too many ),] or }

409 Unrecognizable item - skip to find a new statement

looking for a ';' or a key word to get started again

**** 57 ERROR(S) 0 WARNING(S)

COMPILATION TIME = 0.003 SECONDS 3 MB 24.1.3 r41464 XXX-DEG

USER: GAMS Development Corporation, Washington, DC G871201/0000CA-ANY

Free Demo, 202-342-0180, sa...@gams.com, www.gams.com DC0000

**** FILE SUMMARY

Input /Users/Test/Desktop/test_gam.gms.rtf

Output /Users/Test/Desktop/test_gam.gms.lst

**** USER ERROR(S) ENCOUNTERED

Bryan Arguello

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Oct 17, 2013, 11:04:51 AM10/17/13

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And I don't know if it makes a difference, but I chose Gurobi whenever it was available as a choice of optimizer when setting up GAMS. LINDO was my second choice.

Bryan Arguello

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Oct 17, 2013, 11:23:23 PM10/17/13

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I found my problem. I put the GAMS code into a gms file through textedit. Apparently textedit puts in some