Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CsvExportData.cs
===================================================================
diff -u -r6436 -r6801
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CsvExportData.cs	(.../CsvExportData.cs)	(revision 6436)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/CsvExportData.cs	(.../CsvExportData.cs)	(revision 6801)
@@ -2088,10 +2088,13 @@
     /// <param name="message">The message.</param>
     internal static void RemoveCarriageReturnsFromMessage(ref string message)
     {
-        // remove carriage return at the end
-        message = message.TrimEnd('\r', '\n');
-        // replace other carriage returns by a space
-        message = message.Replace("\r\n", " ");
+        if (!string.IsNullOrEmpty(message))
+        {
+            // remove carriage return at the end
+            message = message.TrimEnd('\r', '\n');
+            // replace other carriage returns by a space
+            message = message.Replace("\r\n", " ");
+        }
     }
 
     /// <summary>