diff --git a/Distribute_computing/GridDynamics_plugins/CalculateFitness.vb b/Distribute_computing/GridDynamics_plugins/CalculateFitness.vb
index 04afa6e..6774143 100644
--- a/Distribute_computing/GridDynamics_plugins/CalculateFitness.vb
+++ b/Distribute_computing/GridDynamics_plugins/CalculateFitness.vb
@@ -129,7 +129,7 @@ Public Module CalculateFitness
         Dim grids As GridMatrix() = readJSON(Of GridMatrix())(genomes)
         Dim trainingData = readJSON(Of NamedValue(Of Double())())(trainingSet) _
             .Select(Function(d)
-                        Return New TrainingSet With {
+                        Return New TrainingSet(Nothing) With {
                             .targetID = d.Name,
                             .Y = d.Description,
                             .X = d.Value
diff --git a/Distribute_computing/GridDynamics_plugins/test/Module1.vb b/Distribute_computing/GridDynamics_plugins/test/Module1.vb
index af568bc..3d78664 100644
--- a/Distribute_computing/GridDynamics_plugins/test/Module1.vb
+++ b/Distribute_computing/GridDynamics_plugins/test/Module1.vb
@@ -11,7 +11,7 @@ Module Module1
     End Sub
 
     Sub testGrid()
-        Dim vec As Vector = 22500.Sequence.Select(Function(i) CDbl(i)).AsVector
+        Dim vec As Vector = 500.Sequence.Select(Function(i) -CDbl(i)).AsVector
         Dim filePath$ = "./test_grid.dat"
         Dim grid As New GridSystem With {
             .AC = -999999,