=== modified file 'dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata/importers/DefaultIdentifiableObjectImporter.java'
--- dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata/importers/DefaultIdentifiableObjectImporter.java	2013-10-01 12:07:27 +0000
+++ dhis-2/dhis-services/dhis-service-dxf2/src/main/java/org/hisp/dhis/dxf2/metadata/importers/DefaultIdentifiableObjectImporter.java	2013-10-01 12:52:30 +0000
@@ -876,7 +876,7 @@
                     }
                     else
                     {
-                        if ( ExchangeClasses.getImportMap().get( idObject.getClass() ) != null )
+                        if ( ExchangeClasses.getImportMap().get( idObject.getClass() ) != null || UserCredentials.class.isAssignableFrom( idObject.getClass() ) )
                         {
                             reportReferenceError( idObject, object );
                         }