diff -r 000000000000 -r 6474c204b198 js/src/ctypes/ctypes.msg
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/ctypes/ctypes.msg	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,14 @@
+/* -*-  Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * This is the jsctypes error message file.
+ *
+ * For syntax details, see js/src/js.msg.
+ */
+
+MSG_DEF(CTYPESMSG_PLACEHOLDER_0, 0, 0, JSEXN_NONE, NULL)
+MSG_DEF(CTYPESMSG_TYPE_ERROR,    1, 2, JSEXN_TYPEERR, "expected type {0}, got {1}")
+