Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PresentationObjects/GrassCoverErosionInwardsInputContext.cs
===================================================================
diff -u -rd689ea05c1014eb4d51b927e11eb6c48255f0a47 -r438a524144f283209902ae89f058a134380c9538
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PresentationObjects/GrassCoverErosionInwardsInputContext.cs	(.../GrassCoverErosionInwardsInputContext.cs)	(revision d689ea05c1014eb4d51b927e11eb6c48255f0a47)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Forms/PresentationObjects/GrassCoverErosionInwardsInputContext.cs	(.../GrassCoverErosionInwardsInputContext.cs)	(revision 438a524144f283209902ae89f058a134380c9538)
@@ -22,7 +22,6 @@
 using System;
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.GrassCoverErosionInwards.Data;
-using Ringtoets.GrassCoverErosionInwards.Forms.Properties;
 using RingtoetsCommonFormsResources = Ringtoets.Common.Forms.Properties.Resources;
 
 namespace Ringtoets.GrassCoverErosionInwards.Forms.PresentationObjects
@@ -49,10 +48,7 @@
         {
             if (calculation == null)
             {
-                var message = string.Format(RingtoetsCommonFormsResources.AssertInputsAreNotNull_DataDescription_0_cannot_be_null,
-                                            Resources.GrassCoverErosionInwardsInputContext_DataDescription_GrassCoverErosionInwardsInputCalculationItem);
-
-                throw new ArgumentNullException("calculation", message);
+                throw new ArgumentNullException("calculation");
             }
 
             Calculation = calculation;