diff -r 33988aaa1652 -r 01d98d68d697 mercurial/bundlerepo.py
--- a/mercurial/bundlerepo.py	Sun Dec 17 22:16:57 2006 -0600
+++ b/mercurial/bundlerepo.py	Mon Dec 18 12:22:43 2006 -0800
@@ -49,7 +49,7 @@
                 continue
             for p in (p1, p2):
                 if not p in self.nodemap:
-                    raise revlog.RevlogError(_("unknown parent %s") % short(p1))
+                    raise revlog.LookupError(_("unknown parent %s") % short(p1))
             if linkmapper is None:
                 link = n
             else: