Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs
===================================================================
diff -u -r17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731 -rb148ea7a2a1bd19c9e7b2d6904c901a030940ced
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision 17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Plugin/ClosingStructuresPlugin.cs	(.../ClosingStructuresPlugin.cs)	(revision b148ea7a2a1bd19c9e7b2d6904c901a030940ced)
@@ -47,7 +47,6 @@
 using Ringtoets.Common.Utils;
 using RingtoetsCommonFormsResources = Ringtoets.Common.Forms.Properties.Resources;
 using RingtoetsCommonDataResources = Ringtoets.Common.Data.Properties.Resources;
-using RingtoetsCommonServiceResources = Ringtoets.Common.Service.Properties.Resources;
 using RingtoetsCommonIOResources = Ringtoets.Common.IO.Properties.Resources;
 
 namespace Ringtoets.ClosingStructures.Plugin
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationContextTreeNodeInfoTest.cs
===================================================================
diff -u -r17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731 -rb148ea7a2a1bd19c9e7b2d6904c901a030940ced
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationContextTreeNodeInfoTest.cs)	(revision 17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationContextTreeNodeInfoTest.cs)	(revision b148ea7a2a1bd19c9e7b2d6904c901a030940ced)
@@ -325,14 +325,14 @@
                     ToolStripItem calculateContextMenuItem = contextMenu.Items[contextMenuCalculateIndex];
 
                     Assert.AreEqual("Be&rekenen", calculateContextMenuItem.Text);
-                    StringAssert.Contains($"Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", calculateContextMenuItem.ToolTipText);
+                    StringAssert.Contains("Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", calculateContextMenuItem.ToolTipText);
                     TestHelper.AssertImagesAreEqual(RingtoetsCommonFormsResources.CalculateIcon, calculateContextMenuItem.Image);
                     Assert.IsFalse(calculateContextMenuItem.Enabled);
 
                     ToolStripItem validateContextMenuItem = contextMenu.Items[contextMenuValidateIndex];
 
                     Assert.AreEqual("&Valideren", validateContextMenuItem.Text);
-                    StringAssert.Contains($"Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", validateContextMenuItem.ToolTipText);
+                    StringAssert.Contains("Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", validateContextMenuItem.ToolTipText);
                     TestHelper.AssertImagesAreEqual(RingtoetsCommonFormsResources.ValidateIcon, validateContextMenuItem.Image);
                     Assert.IsFalse(validateContextMenuItem.Enabled);
                 }
@@ -447,12 +447,13 @@
                     {
                         var msgs = messages.ToArray();
                         Assert.AreEqual(6, msgs.Length);
-                        StringAssert.StartsWith($"Validatie van '{calculation.Name}' gestart om: ", msgs[0]);
-                        StringAssert.StartsWith($"Validatie van '{calculation.Name}' beëindigd om: ", msgs[1]);
-                        StringAssert.StartsWith($"Berekening van '{calculation.Name}' gestart om: ", msgs[2]);
+                        string calculationName = calculation.Name;
+                        StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", calculationName), msgs[0]);
+                        StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", calculationName), msgs[1]);
+                        StringAssert.StartsWith(string.Format("Berekening van '{0}' gestart om: ", calculationName), msgs[2]);
                         StringAssert.StartsWith("Betrouwbaarheid sluiting kunstwerk berekening is uitgevoerd op de tijdelijke locatie", msgs[3]);
-                        StringAssert.StartsWith($"Berekening van '{calculation.Name}' beëindigd om: ", msgs[4]);
-                        StringAssert.StartsWith($"Uitvoeren van '{calculation.Name}' is gelukt.", msgs[5]);
+                        StringAssert.StartsWith(string.Format("Berekening van '{0}' beëindigd om: ", calculationName), msgs[4]);
+                        StringAssert.StartsWith(string.Format("Uitvoeren van '{0}' is gelukt.", calculationName), msgs[5]);
                     });
 
                     Assert.AreNotSame(initialOutput, calculation.Output);
@@ -509,8 +510,9 @@
                     {
                         var msgs = messages.ToArray();
                         Assert.AreEqual(2, msgs.Length);
-                        StringAssert.StartsWith($"Validatie van '{calculation.Name}' gestart om: ", msgs[0]);
-                        StringAssert.StartsWith($"Validatie van '{calculation.Name}' beëindigd om: ", msgs[1]);
+                        string calculationName = calculation.Name;
+                        StringAssert.StartsWith(string.Format("Validatie van '{0}' gestart om: ", calculationName), msgs[0]);
+                        StringAssert.StartsWith(string.Format("Validatie van '{0}' beëindigd om: ", calculationName), msgs[1]);
                     });
                 }
             }
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731 -rb148ea7a2a1bd19c9e7b2d6904c901a030940ced
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision 17cebf7b5ba4bd3b27d41ad322a18f2c50f4d731)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Forms.Test/TreeNodeInfos/ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs	(.../ClosingStructuresCalculationGroupContextTreeNodeInfoTest.cs)	(revision b148ea7a2a1bd19c9e7b2d6904c901a030940ced)
@@ -504,14 +504,14 @@
                     ToolStripItem calculatAllContextMenuItem = contextMenu.Items[contextMenuCalculateAllIndexRootGroup];
 
                     Assert.AreEqual("Alles be&rekenen", calculatAllContextMenuItem.Text);
-                    StringAssert.Contains($"Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", calculatAllContextMenuItem.ToolTipText);
+                    StringAssert.Contains("Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", calculatAllContextMenuItem.ToolTipText);
                     TestHelper.AssertImagesAreEqual(RingtoetsCommonFormsResources.CalculateAllIcon, calculatAllContextMenuItem.Image);
                     Assert.IsFalse(calculatAllContextMenuItem.Enabled);
 
                     ToolStripItem validateAllContextMenuItem = contextMenu.Items[contextMenuValidateAllIndexRootGroup];
 
                     Assert.AreEqual("Alles &valideren", validateAllContextMenuItem.Text);
-                    StringAssert.Contains($"Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", validateAllContextMenuItem.ToolTipText);
+                    StringAssert.Contains("Herstellen van de verbinding met de hydraulische randvoorwaardendatabase is mislukt.", validateAllContextMenuItem.ToolTipText);
                     TestHelper.AssertImagesAreEqual(RingtoetsCommonFormsResources.ValidateAllIcon, validateAllContextMenuItem.Image);
                     Assert.IsFalse(validateAllContextMenuItem.Enabled);
                 }