Index: trunk/psLib/src/collections/psCollectionsErrors.dat
===================================================================
--- trunk/psLib/src/collections/psCollectionsErrors.dat	(revision 2855)
+++ trunk/psLib/src/collections/psCollectionsErrors.dat	(revision 3107)
@@ -37,4 +37,5 @@
 psList_ITERATOR_INVALID                Specified iterator is not valid.
 psList_ITERATOR_NULL                   Specified iterator is NULL.
+psList_ITERATOR_NONMUTABLE             Specified iterator indicates list is non-mutable.
 psList_LIST_NULL                       Specified psList reference is NULL.
 psList_DATA_NULL                       Specified data item is NULL.