GeoGen Script reference
GGE2702

The script attempted to translate a incorrect numeric value to an enum value using FromNumber function of that enum type.

This means that the numeric value being translated doesn't correspond to any item declared by that enum.

enum DaysOfWeek
{
Monday = 1,
Tuesday = 2,
Wednesday = 3,
Thursday = 4,
Friday = 5,
Saturday = 6,
Sunday = 7
}
DaysOfWeek.FromNumber(5); // OK, returns DaysOfWeek.Friday
DaysOfWeek.FromNumber(8); // GGE2702, 8 doesn't correspond to any item declared by DaysOfWeek