diff --git a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/Resources.properties b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/Resources.properties
index 2584209f5..1aa9c0096 100644
--- a/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/Resources.properties
+++ b/proposal/myrmidon/src/java/org/apache/myrmidon/components/configurer/Resources.properties
@@ -4,6 +4,7 @@ get-ref.error=Could not locate reference "{0}".
 mismatch-ref-types.error=Mismatched type for reference "{0}".  Was expecting an object of type {1}, instead found an object of type {2}.
 incompatible-element-types.error=Incompatible creator and adder/setter methods found in class {0} for property "{1}".
 multiple-adder-methods-for-element.error=Multiple adder/setter methods found in class {0} for property "{1}".
+multiple-typed-adder-methods-for-element.error=Multiple typed add() methods found in class {0} that accept different types {1} and {2}.
 multiple-creator-methods-for-element.error=Multiple creator methods found in class {0} for property "{1}".
 multiple-content-setter-methods.error=Multiple content setter methods found in class {0}.
 pending-property-value.error=An object created using the creator method has not been set using the adder/setter method.
@@ -19,3 +20,4 @@ no-such-element.error=Nested <{1}> elements are not allowed for element <{0}>.
 bad-set-element.error=Could not handle element <{1}>, nested in element <{0}>.
 no-content.error=Text content is not allowed for element <{0}>.
 bad-set-content.error=Could not set text content for element <{0}>.
+typed-adder-non-interface.error=The typed adder for class "{0}" must have a single parameter that is an interface rather than {1} which defines a class.
\ No newline at end of file