Custom Goals Component Working unexpectedly

Grasshopper Developer
,
1

I am trying to make a component for the PolygonArea Goal in VisualStudio2019.
It was previously tested with a simple c# component with rhino and kangaroo up to date and worked.

//Code taken from GitHub (Kangaroo2, Daniel Picker) and modified
  public class PolygonArea : GoalObject
  {
    public double Strength;
    public double TargetArea;

    public PolygonArea(List<Point3d> V, double Area, double k)
    {
      if(k <= 0)k = 1;
      int L = V.Count;
      PPos = V.ToArray();
      Move = new Vector3d[L];
      Weighting = new double[L];
      for (int i = 0; i < L; i++)
      {
        Weighting[i] = k;
      }
      TargetArea = Area;
      Strength = k;
    }

    public override void Calculate(List<KangarooSolver.Particle> p)
    {
      Vector3d temporalSum = Vector3d.Zero;
      double TotalLength = 0;
      int L = PIndex.Length;

      for (int i = 1; i < L - 1; i++)
      {
        temporalSum += Vector3d.CrossProduct(p[PIndex[0]].Position - p[PIndex[i]].Position, p[PIndex[0]].Position - p[PIndex[(i + 1) % L]].Position);
      }

      for (int i = 0; i < L; i++)
      {

        TotalLength += p[PIndex[i]].Position.DistanceTo(p[PIndex[(i + 1) % L]].Position);

        Move[i] = Vector3d.Zero;
      }

      double CurrentAreaDoubled = temporalSum.Length * 0.5;
      double AreaShortage = TargetArea - CurrentAreaDoubled;
      double Offset = AreaShortage / TotalLength;
      temporalSum.Unitize();

      for (int i = 0; i < L; i++)
      {
        int NextVert = (i + 1) % L;
        Vector3d Edge = (p[PIndex[(i + 1) % L]].Position - p[PIndex[i]].Position);
        Edge.Unitize();
        Vector3d Pressure = Offset * Vector3d.CrossProduct(Edge, temporalSum);
        Move[i] += Pressure;
        Move[NextVert] += Pressure;
        Weighting[i] = Strength;
      }
    }
  }

(logic taken from Caculate area of polygon in 3D - Mathematics Stack Exchange)

However Visual Studio didn’t like the combo of versions of Kangaroo and Rhinocommon dlls (even with the latest version of rhinocommon it supposedly kangaroo was a later version, while when updating it it said it in VS it was exactly the same). Therefore went one version back in Kangaroo. Now not even the c# component works. Are IGoals treated differently in different versions of Kangaroo? Any advice on how to make it work?

(Initially: RhinoCommon + Kangaroo version 7.12.21313.6341, when pressing Start apparently RhinoCommon is 7.12.21313.6340, Second try: Kangaroo 2.41)

Thank you for your time.

PS: Actually the Solver does run in both c# component and VS component, just the results are wrong.