Converter error was fixed

Models/Forces/ForceTupleViewObject.cs

@@ -0,0 +1,59 @@
+using StructureHelperCommon.Models.Forces;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelper.Models.Forces
+{
+    internal class ForceTupleViewObject
+    {
+        IForceTuple forceTuple;
+
+        private double mx;
+
+        public double Mx
+        {
+            get { return mx; }
+            set { mx = value; }
+        }
+        private double my;
+
+        public double My
+        {
+            get { return my; }
+            set { my = value; }
+        }
+        private double nz;
+
+        public double Nz
+        {
+            get { return nz; }
+            set { nz = value; }
+        }
+        private double qx;
+
+        public double Qx
+        {
+            get { return qx; }
+            set { qx = value; }
+        }
+        private double qy;
+
+        public double Qy
+        {
+            get { return qy; }
+            set { qy = value; }
+        }
+        private double mz;
+
+        public double Mz
+        {
+            get { return mz; }
+            set { mz = value; }
+        }
+
+
+    }
+}