--- a/hgext/convert/cvs.py	Fri Nov 09 20:21:35 2007 -0200
+++ b/hgext/convert/cvs.py	Fri Nov 09 20:21:35 2007 -0200
@@ -11,7 +11,7 @@
 
         cvs = os.path.join(path, "CVS")
         if not os.path.exists(cvs):
-            raise NoRepo("couldn't open CVS repo %s" % path)
+            raise NoRepo("%s does not look like a CVS checkout" % path)
 
         self.changeset = {}
         self.files = {}