Index: Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs
===================================================================
diff -u -r3ec59314887b2c9d085c60c6310eb953d8c6842c -rcf5f7a2fbcaf236ba2d6edfc111d6f89eacbd05e
--- Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision 3ec59314887b2c9d085c60c6310eb953d8c6842c)
+++ Ringtoets/GrassCoverErosionOutwards/src/Ringtoets.GrassCoverErosionOutwards.Plugin/GrassCoverErosionOutwardsPlugin.cs	(.../GrassCoverErosionOutwardsPlugin.cs)	(revision cf5f7a2fbcaf236ba2d6edfc111d6f89eacbd05e)
@@ -48,7 +48,6 @@
 using Ringtoets.Common.Forms.Views;
 using Ringtoets.Common.Plugin;
 using Ringtoets.Common.Service;
-using Ringtoets.Common.Service.MessageProviders;
 using Ringtoets.GrassCoverErosionOutwards.Data;
 using Ringtoets.GrassCoverErosionOutwards.Forms;
 using Ringtoets.GrassCoverErosionOutwards.Forms.PresentationObjects;
@@ -599,7 +598,7 @@
                         assessmentSection.HydraulicBoundaryDatabase.EffectivePreprocessorDirectory(),
                         nodeData.WrappedData,
                         nodeData.GetNormFunc(),
-                        new DesignWaterLevelCalculationMessageProvider(nodeData.CategoryBoundaryName));
+                        nodeData.CategoryBoundaryName);
                 });
 
             SetHydraulicsMenuItemEnabledStateAndTooltip(nodeData.AssessmentSection,
@@ -1033,7 +1032,7 @@
                                             assessmentSection.HydraulicBoundaryDatabase.EffectivePreprocessorDirectory(),
                                             context.WrappedData,
                                             context.GetNormFunc(),
-                                            new DesignWaterLevelCalculationMessageProvider(context.CategoryBoundaryName)))
+                                            context.CategoryBoundaryName))
                             .ToArray();
 
                     ActivityProgressDialogRunner.Run(Gui.MainWindow, activities);