--- a/mercurial/error.py	Wed Aug 03 16:41:14 2011 -0500
+++ b/mercurial/error.py	Tue Aug 02 15:21:10 2011 -0400
@@ -39,6 +39,9 @@
 class ConfigError(Abort):
     'Exception raised when parsing config files'
 
+class OutOfBandError(Exception):
+    'Exception raised when a remote repo reports failure'
+
 class ParseError(Exception):
     'Exception raised when parsing config files (msg[, pos])'