error messages

What is on line 311 of F:\Try\GhtwostageNEW.txt?

on line 311 'G:\gaussi\procs\quad.src'
and line 312 'G:\gaussi\procs\simplex.src'

What is the full text of the code on line 311 of F:\Try\GhtwostageNEW.txt? Is it this?

#include G:\gaussi\procs\quad.src

If so, does there exist a file in the directory G:\gaussi\procs named quad.src?

Yes it is: #include G:\gaussi\procs\quad.src.
The fie does not exist in the directory.

Your program is trying to load in code from a file that does not exist. That is why you are getting the error File not found. You need to place all of the #included files in a folder on your computer and then change the path in the #include lines to the path to the files on your computer.

Thank you very much.
What about:
Undefined symbols:
GRULE F:\Try\GhtwostageNEW.txt(16)
MAXLIK F:\Try\GhtwostageNEW.txt(46)
MAXPRT F:\Try\GhtwostageNEW.txt(48)
blob2 F:\Try\GhtwostageNEW.txt(148)

Please assist.

MAXLIK is a procedure from the GAUSS application module named Maxlik. This is application module is available for sale from Aptech. Most likely at the top of your main program file is a line that reads:

library maxlik;

That is how those procedures would be located by your program. Any symbols that your program needs that are not part of the standard GAUSS installation are usually added by either a library statement which will make all procedures from that library available, or from a #include statement which will make all procedures in the #included file available.

Thanks.

I have installed gauss 16. GRULE, MAXLIK, MAXPRT and blob2?