Index: openacs-4/packages/xowiki/catalog/xowiki.en_US.ISO-8859-1.xml
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/catalog/xowiki.en_US.ISO-8859-1.xml,v
diff -u -r1.52 -r1.53
--- openacs-4/packages/xowiki/catalog/xowiki.en_US.ISO-8859-1.xml	6 Jan 2009 01:10:58 -0000	1.52
+++ openacs-4/packages/xowiki/catalog/xowiki.en_US.ISO-8859-1.xml	8 Jan 2009 11:10:31 -0000	1.53
@@ -23,7 +23,7 @@
   <msg key="entries_using_form">Entries for form %form%</msg>
   <msg key="error-delete_entries_first">This page is still used by %count% entries. Please delete these first before deleting this page.</msg>
   <msg key="error-form_constraint-invalid_characters">Form constraint contains invalid characters</msg>
-  <msg key="error-form_constraint-unknown_attribute">From field '%name%' has unknown attribute '%entry%'</msg>
+  <msg key="error-form_constraint-unknown_attribute">From field '%name%' (class %class%) has unknown attribute '%entry%'</msg>
   <msg key="error-form_constraint-unknown_editor">Unknown editor %editor%. Possible values are: %editors%</msg>
   <msg key="error-form_constraint-unknown_spec_entry">From field '%name%' has unknown specification '%entry%'</msg>
   <msg key="error-includelet-adp_syntax_invalid">Syntax: adp &amp;lt;name of adp-file&amp;gt; {&amp;lt;argument list&amp;gt;}&lt;br/&gt;
Index: openacs-4/packages/xowiki/tcl/form-field-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/form-field-procs.tcl,v
diff -u -r1.127 -r1.128
--- openacs-4/packages/xowiki/tcl/form-field-procs.tcl	23 Dec 2008 09:51:58 -0000	1.127
+++ openacs-4/packages/xowiki/tcl/form-field-procs.tcl	8 Jan 2009 11:10:32 -0000	1.128
@@ -240,7 +240,7 @@
         set definition_class [lindex [my procsearch $attribute] 0]
 	set method [my info methods $attribute]
         if {[string match "::xotcl::*" $definition_class] || $method eq ""} {
-          error [_ xowiki.error-form_constraint-unknown_attribute [list name [my name] entry $attribute]]
+          error [_ xowiki.error-form_constraint-unknown_attribute [list class [my info class] name [my name] entry $attribute]]
         }
         if {[catch {
           #