Problems with GeomPlate_BuildPlateSurface

Hello,

I am having problems with generating a GeomPlate_BuildPlateSurface for a simple example of a plane. See the attached stl file: quadrangle_4x4.stl

First I extracted all the points in the stl file into : Handle_TColgp_HArray1OfPnt result.

Then the following code creates the constraints w.r.t. to the extracted points

Standard_Integer len = result->Length();

//Initialize a BuildPlateSurface
GeomPlate_BuildPlateSurface BPSurf(3, 16, 5);

//extract geometric points from the result object and add them as point constraints
    for(Standard_Integer i=1; i<=len; ++i)
    {
        gp_Pnt pt = result->Value(i);
        //std::cout << "i = " << i << std::endl;
        //std::cout << pt.X() << ", " << pt.Y() << ", " << pt.Z() << std::endl;
        //add point constraint
        Handle(GeomPlate_PointConstraint) PCont = new GeomPlate_PointConstraint(pt, 0);

    }
    //Compute the plate surface
    BPSurf.Perform();

The code compiles fine but upon running it, I get the error: "terminate called after throwing an instance of 'Standard_RangeError'"

This error is being created by the Perform() method. Could anyone indicate what the problem could be?

Thanks and Regards,

Sunayana