Index: Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanismAssemblyFactory.cs
===================================================================
diff -u -r2c4456778007600b5f89d4ee79ef181d4a12b63f -r42750c3eeb3410d3cd559ac0cb1a899efbaa1659
--- Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanismAssemblyFactory.cs	(.../ClosingStructuresFailureMechanismAssemblyFactory.cs)	(revision 2c4456778007600b5f89d4ee79ef181d4a12b63f)
+++ Ringtoets/ClosingStructures/src/Ringtoets.ClosingStructures.Data/ClosingStructuresFailureMechanismAssemblyFactory.cs	(.../ClosingStructuresFailureMechanismAssemblyFactory.cs)	(revision 42750c3eeb3410d3cd559ac0cb1a899efbaa1659)
@@ -30,6 +30,7 @@
 using Ringtoets.Common.Data.AssessmentSection;
 using Ringtoets.Common.Data.Exceptions;
 using Ringtoets.Common.Primitives;
+using RingtoetsCommonDataResources = Ringtoets.Common.Data.Properties.Resources;
 
 namespace Ringtoets.ClosingStructures.Data
 {
@@ -282,14 +283,14 @@
                 return FailureMechanismAssemblyResultFactory.CreateNotApplicableAssembly();
             }
 
-            IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
-            AssemblyCategoriesInput assemblyCategoriesInput = CreateAssemblyCategoriesInput(failureMechanism, assessmentSection);
-            IEnumerable<FailureMechanismSectionAssembly> sectionAssemblies = failureMechanism.SectionResults
-                                                                                             .Select(sr => GetSectionAssembly(sr, failureMechanism, assessmentSection))
-                                                                                             .ToArray();
-
             try
             {
+                IAssemblyToolCalculatorFactory calculatorFactory = AssemblyToolCalculatorFactory.Instance;
+                AssemblyCategoriesInput assemblyCategoriesInput = CreateAssemblyCategoriesInput(failureMechanism, assessmentSection);
+                IEnumerable<FailureMechanismSectionAssembly> sectionAssemblies = failureMechanism.SectionResults
+                                                                                                 .Select(sr => GetSectionAssembly(sr, failureMechanism, assessmentSection))
+                                                                                                 .ToArray();
+
                 IFailureMechanismAssemblyCalculator calculator =
                     calculatorFactory.CreateFailureMechanismAssemblyCalculator(AssemblyToolKernelFactory.Instance);
 
@@ -299,6 +300,10 @@
             {
                 throw new AssemblyException(e.Message, e);
             }
+            catch (AssemblyException e)
+            {
+                throw new AssemblyException(RingtoetsCommonDataResources.FailureMechanismAssemblyFactory_Error_while_assembling_failureMechanism, e);
+            }
         }
 
         /// <summary>
Index: Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismAssemblyFactoryTest.cs
===================================================================
diff -u -rb85e01707b64280b3aa8a16acd1994c0c2ee1c04 -r42750c3eeb3410d3cd559ac0cb1a899efbaa1659
--- Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismAssemblyFactoryTest.cs	(.../ClosingStructuresFailureMechanismAssemblyFactoryTest.cs)	(revision b85e01707b64280b3aa8a16acd1994c0c2ee1c04)
+++ Ringtoets/ClosingStructures/test/Ringtoets.ClosingStructures.Data.Test/ClosingStructuresFailureMechanismAssemblyFactoryTest.cs	(.../ClosingStructuresFailureMechanismAssemblyFactoryTest.cs)	(revision 42750c3eeb3410d3cd559ac0cb1a899efbaa1659)
@@ -1102,8 +1102,8 @@
                 // Assert
                 var exception = Assert.Throws<AssemblyException>(call);
                 Exception innerException = exception.InnerException;
-                Assert.IsInstanceOf<FailureMechanismSectionAssemblyCalculatorException>(innerException);
-                Assert.AreEqual(innerException.Message, exception.Message);
+                Assert.IsInstanceOf<AssemblyException>(innerException);
+                Assert.AreEqual("Voor een of meerdere vakken kan geen resultaat worden bepaald.", exception.Message);
                 mocks.VerifyAll();
             }
         }
Index: Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.Designer.cs
===================================================================
diff -u -ra5115968c170dddb9ef42d207adcc4195cacc892 -r42750c3eeb3410d3cd559ac0cb1a899efbaa1659
--- Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision a5115968c170dddb9ef42d207adcc4195cacc892)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.Designer.cs	(.../Resources.Designer.cs)	(revision 42750c3eeb3410d3cd559ac0cb1a899efbaa1659)
@@ -443,6 +443,15 @@
         }
         
         /// <summary>
+        ///   Looks up a localized string similar to Voor een of meerdere vakken kan geen resultaat worden bepaald..
+        /// </summary>
+        public static string FailureMechanismAssemblyFactory_Error_while_assembling_failureMechanism {
+            get {
+                return ResourceManager.GetString("FailureMechanismAssemblyFactory_Error_while_assembling_failureMechanism", resourceCulture);
+            }
+        }
+        
+        /// <summary>
         ///   Looks up a localized string similar to Vv-&gt;VIv.
         /// </summary>
         public static string FailureMechanismCategoryType_FactorizedLowerLimitNorm_DisplayName {
Index: Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.resx
===================================================================
diff -u -ra5115968c170dddb9ef42d207adcc4195cacc892 -r42750c3eeb3410d3cd559ac0cb1a899efbaa1659
--- Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.resx	(.../Resources.resx)	(revision a5115968c170dddb9ef42d207adcc4195cacc892)
+++ Ringtoets/Common/src/Ringtoets.Common.Data/Properties/Resources.resx	(.../Resources.resx)	(revision 42750c3eeb3410d3cd559ac0cb1a899efbaa1659)
@@ -423,4 +423,7 @@
   <data name="Hydraulic_category_boundary_0_" xml:space="preserve">
     <value>Categorie {0}</value>
   </data>
+  <data name="FailureMechanismAssemblyFactory_Error_while_assembling_failureMechanism" xml:space="preserve">
+    <value>Voor een of meerdere vakken kan geen resultaat worden bepaald.</value>
+  </data>
 </root>
\ No newline at end of file