Index: src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs
===================================================================
diff -u -r1086 -r1094
--- src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 1086)
+++ src/Deltares.DSoilModel.Forms/DSoilModelGeometryEditor.cs	(.../DSoilModelGeometryEditor.cs)	(revision 1094)
@@ -1213,6 +1213,13 @@
             try
             {
                 var soilProfile2D = utils.CombineSurfaceLineWithSoilProfile2D(surfaceLine2.Geometry, profile2D, null, shift);
+                if (soilProfile2D == null)
+                {
+                    var title = LocalizationManager.GetTranslatedText(this, "CombinerError");
+                    var message = LocalizationManager.GetTranslatedText(this, "CombinerErrorNoProfile"); //;
+                    MessageBox.Show(message, title, MessageBoxButtons.OK);
+                    return;
+                }
                 soilProfile2D.Name = profile2D.Name + surfaceLine2.Name;
                 AddSoilProfile2DToProjectAndUpdateUI(soilProfile2D);
             }
Index: src/Deltares.DSoilModel.Forms/Translations.xml
===================================================================
diff -u -r1086 -r1094
--- src/Deltares.DSoilModel.Forms/Translations.xml	(.../Translations.xml)	(revision 1086)
+++ src/Deltares.DSoilModel.Forms/Translations.xml	(.../Translations.xml)	(revision 1094)
@@ -114,6 +114,7 @@
   <Translation ID="ExecuteClearSoilProfile2DCommandUserConfirm" en-US="Do you want to clear 2D profile?" nl-NL="Wilt u 2D profiel leegmaken?" />
   <Translation ID="SoilProfile1DLookup2DControl" en-US="1D Profile" nl-NL="1D Profiel" />
   <Translation ID="CombinerError" en-US="2D Combiner Error" nl-NL="2D Combinatie Fout" />
+  <Translation ID="CombinerErrorNoProfile" en-US="No new profile created, because the given profile cannot be combined with the surfaceline." nl-NL= "Omdat het gegeven profiel niet kan worden gecombineerd met de gekozen lijn, is er geen nieuw profiel gemaakt." />
   <Translation ID="WhichColumnToUseAsSegmentID" en-US="Which column to use as segment ID?" nl-NL="Welke kolom wilt u gebruiken als segment-ID?" />
   <Translation ID="ImportShapefileFailed" en-US="Importing the shape file failed - does it contain correct shape types?" nl-NL="Importeren van de shapefile mislukt - bevat de file de juiste typen shapes?" />
   <Translation ID="MapLabelError" en-US="An unexpected exception occured while adding labels to the map ({0})" nl-NL="Er is een overwachtte fout opgetreden bij het toevoegen van labels op de kaart ({0})" />