CI3 => CI4

www-api/system/language/en/Router.php

@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+// Router language settings
+return [
+    'invalidParameter'         => 'A parameter does not match the expected type.',
+    'missingDefaultRoute'      => 'Unable to determine what should be displayed. A default route has not been specified in the routing file.',
+    'invalidDynamicController' => 'A dynamic controller is not allowed for security reasons. Route handler: {0}',
+    'invalidControllerName'    => 'The namespace delimiter is a backslash (\), not a slash (/). Route handler: {0}',
+];