GeoGen Script reference
GGE2704

The script attempted to use relative coordinate in dimension in which the map is infinite.

Relative coordinates can't be used in dimensions in which the map is infinite because there is no reference size to evaluate the coordinate against.

metadata
{
Height: Infinite,
Width: Infinite
}
var map = HeightMap.RadialGradient(@[0.5, 0.5], 500, 1, 0); // GGE2704