Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DataPlugins/DataPluginImporter.cs
===================================================================
diff -u -r2168 -r2204
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DataPlugins/DataPluginImporter.cs	(.../DataPluginImporter.cs)	(revision 2168)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DataPlugins/DataPluginImporter.cs	(.../DataPluginImporter.cs)	(revision 2204)
@@ -1054,6 +1054,11 @@
 
                 importer.Import(progress);
                 exceptions.AddRange(importer.ImportErrors);
+                foreach (var importerMessage in importer.ImproperAttributeMessages)
+                {
+                    var lm = new LogMessage(LogMessageType.Error, this, importerMessage);
+                    importLogMessages.Add(lm);
+                }
             }
 
             using (var sw = new StreamWriter(importErrorLogFile, false))
@@ -1066,7 +1071,7 @@
                                                DateTime.Now.ToShortDateString(), error.GetType().Name, error.Message);
                     var lm = new LogMessage(LogMessageType.Error, this, error.Message);
                     importLogMessages.Add(lm);
-                }
+                }                
             }
         }
 
Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Importers/LocationPropertyImporter.cs
===================================================================
diff -u -r2089 -r2204
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Importers/LocationPropertyImporter.cs	(.../LocationPropertyImporter.cs)	(revision 2089)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/Importers/LocationPropertyImporter.cs	(.../LocationPropertyImporter.cs)	(revision 2204)
@@ -46,7 +46,7 @@
         private readonly IDictionary<string, ICollection<LocationAttributeMapping>> filesToImportFrom;
         private readonly PolygonAttributeImporter<Location> polygonAttributeImporter;
         private readonly LineAttributeImporter<Location> lineAttributeImporter;
-
+        private List<string> improperAttributeMessages = new List<string>();
         private IEnumerable<Location> targets;
 
         public LocationPropertyImporter()
@@ -62,17 +62,30 @@
             this.lineAttributeImporter = new LineAttributeImporter<Location>();
         }
 
+        public List<string> ImproperAttributeMessages
+        {
+            get { return improperAttributeMessages; }
+        }
+
         public LocationPropertyImporter(string dataLocation, IEnumerable<DataAttribute> dataAttributes) : this()
         {
             this.DataFileLocation = dataLocation;
-
+            improperAttributeMessages.Clear();
             // Register configured property attributes
             foreach (var dataAttribute in dataAttributes)
             {
                 if (LocationShapeFileAttributeMap.IsPropertyAttribute(dataAttribute.AttributeId))
                     RegisterAttributeMapping(dataAttribute.AttributeId, dataAttribute.AttributeName, dataAttribute.DataSource);
             }
 
+            if (improperAttributeMessages.Count > 0)
+            {
+                var message = Environment.NewLine + "The following attribute id's are supported:" + Environment.NewLine +
+                           string.Join(", ", LocationShapeFileAttributeMap.AttributePropertyMap.Keys.OrderBy(k => k).ToArray());
+
+                message += Environment.NewLine + "Please change the id in the shape file or remove the shape for this attribute from the defx.";
+                improperAttributeMessages.Add(message);
+            }
             // Should throw an exception when more then one crosssection is defined..
             RegisterCrossSectionAttribute(dataAttributes);
         }
@@ -173,42 +186,38 @@
             {
                 string message = string.Format("The attribute id '{0}' is not supported by this importer.", 
                     attributeId);
-
-                message += Environment.NewLine + Environment.NewLine + "The following attribute id's are supported:" + Environment.NewLine +
-                           string.Join(", ", LocationShapeFileAttributeMap.AttributePropertyMap.Keys.OrderBy(k => k).ToArray());
-
-                message += Environment.NewLine + Environment.NewLine + "Please change the id in the file."; 
-
-                throw new NotSupportedException(message);
+                improperAttributeMessages.Add(message);
             }
+            else
+            {
+                LocationAttributeMapping mapping = LocationShapeFileAttributeMap.GetAttributeMapping(attributeId);
+                string attrName = string.IsNullOrEmpty(customAttributeName) || customAttributeName.Trim() == ""
+                    ? mapping.Name // return the default shape file colum name
+                    : customAttributeName;
 
-            LocationAttributeMapping mapping = LocationShapeFileAttributeMap.GetAttributeMapping(attributeId);
-            string attrName = string.IsNullOrEmpty(customAttributeName) || customAttributeName.Trim() == ""
-                                  ? mapping.Name // return the default shape file colum name
-                                  : customAttributeName;
+                if (!IsValidString(dataFileName)) // not a valid file location? use the default file
+                    dataFileName = mapping.File;
 
-            if (!IsValidString(dataFileName)) // not a valid file location? use the default file
-                dataFileName = mapping.File;
+                Action<Location, object> action = mapping.Action;
 
-            Action<Location, object> action = mapping.Action;
+                // Build a map to data (shape) files and attributes contained in the dbf file
+                // if a file is already added to the map a new attribute will be added
+                // to support the concept that multiple attributes can be contained in a single (shape) file
+                // ie. { somedatashapefile.shp, { TRAFFLOAD, PENLENGTH, .. } }
 
-            // Build a map to data (shape) files and attributes contained in the dbf file
-            // if a file is already added to the map a new attribute will be added
-            // to support the concept that multiple attributes can be contained in a single (shape) file
-            // ie. { somedatashapefile.shp, { TRAFFLOAD, PENLENGTH, .. } }
+                ShapeFileLocation file = GetFile(dataFileName);
 
-            ShapeFileLocation file = GetFile(dataFileName);
+                string key = file.FullPath;
 
-            string key = file.FullPath;
+                if (!this.filesToImportFrom.ContainsKey(key))
+                    this.filesToImportFrom.Add(key, new List<LocationAttributeMapping>());
 
-            if (!this.filesToImportFrom.ContainsKey(key))
-                this.filesToImportFrom.Add(key, new List<LocationAttributeMapping>());
-
-            this.filesToImportFrom[key].Add(new LocationAttributeMapping
-                                                {
-                                                    Action = action,
-                                                    Name = attrName
-                                                });
+                this.filesToImportFrom[key].Add(new LocationAttributeMapping
+                {
+                    Action = action,
+                    Name = attrName
+                });
+            }
         }
 
         // used for testing purposes...