The complete error message in the lst file is:

**** Exec Error at line ...: Equation infeasible due to rhs value

**** INFEASIBLE EQUATIONS ...

...

There is the model attribute tolinfeas you can set, e.g.: model.tolinfeas = 1e-5;

This attribute is initially set to NA, in which case GAMS will use a value close to the machine precision. For example the equation:

	
   a.. 0*x =e= 0.0001;

will be infeasible. This can be reversed using

	mymodel.tolinfeas = 1e-3;

which will make the above equation feasible. Other model attributes changing internal GAMS tolerances are: tolinfrep and tolproj.