Document error

svn path=/trunk/mcs/; revision=4939

1 files changed, 10 insertions, 1 deletions

diff --git a/mcs/errors/errors.txt b/mcs/errors/errors.txt
index a6ce339f937..4f7050be037 100755
--- a/mcs/errors/errors.txt
+++ b/mcs/errors/errors.txt
@@ -58,4 +58,13 @@ numbers to match the Microsoft numbers:
 -21	Bug in Microsoft compiler while applying named attribute for
 	StructLayout.CharSet value.
 
--22     Location of previous error 
\ No newline at end of file
+-22     Location of previous error 
+
+-23	.NET runtime error when encoding attributes whose constructor
+	takes an object, but an enumeration value that is boxed is
+	passed.
+
+	Sample:
+		using System.ComponentModel;
+		[DefaultValue (CollectionChangeAction.Add)]
+		class X { static void Main () {	} }