Index: DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs
===================================================================
diff -u -r6776 -r6779
--- DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 6776)
+++ DamClients/DamUI/trunk/src/Dam/Forms/DamPlugin.cs	(.../DamPlugin.cs)	(revision 6779)
@@ -59,6 +59,7 @@
 using DevExpress.XtraEditors.Controls;
 using DevExpress.XtraEditors.Repository;
 using DevExpress.XtraTreeList.Nodes;
+using ConversionHelper = Deltares.Dam.Data.DamEngineIo.ConversionHelper;
 using Location = Deltares.Dam.Data.Location;
 using ProgressDelegate = Deltares.DamEngine.Data.Standard.Calculation.ProgressDelegate;
 using Sensor = Deltares.Dam.Data.Sensors.Sensor;
@@ -684,8 +685,9 @@
                     if (!mainForm.AllowMultiCoreSelection)
                     {
                       // Multicore calculation not enabled
-                      ThrowHelper.ThrowWhenConditionIsTrue<ValidationException>(
-                        "Multicore is currently not supported. Change number of cores to 1 in Tools menu.", () => damEngineInterface.DamProjectData.MaxCalculationCores > 1);
+                      ThrowHelper.ThrowWhenConditionIsTrue<ValidationException>(LocalizationManager.GetTranslatedText(this, "MultiCoreNotSupported"),
+                                                                                () => damEngineInterface.DamProjectData.MaxCalculationCores > 1);
+                      
                     }
 
                     // only if validation is ok, then
@@ -702,7 +704,19 @@
                 }
                 else
                 {
-                    LogManager.Add(new LogMessage(LogMessageType.Error, typeof(EngineInterface), string.Format("{0}", validationMessages)));
+                    Output outputValidation = DamXmlSerialization.LoadOutputFromXmlString(validationMessages);
+                    foreach (var validationResult in outputValidation.ValidationResults)
+                    {
+                        LogManager.Add(new LogMessage(ConversionHelper.ConvertToMessageType(validationResult.MessageType), typeof(EngineInterface), validationResult.Message1));
+                    }
+                    foreach (var calculationMessage in outputValidation.Results.CalculationMessages)
+                    {
+                        LogManager.Add(new LogMessage(ConversionHelper.ConvertToMessageType(calculationMessage.MessageType), typeof(EngineInterface), calculationMessage.Message1));
+                    }
+                    if (LogManager.Messages.Any(m => m.MessageType == LogMessageType.Error))
+                    {
+                        throw new Exception(LocalizationManager.GetTranslatedText(this, "ValidationErrorsOccurred"));
+                    }
                 }
             }
             catch (Exception e)