diff --git a/install/lang/es_ar/langconfig.php b/install/lang/es_ar/langconfig.php
deleted file mode 100644
index 617a3b59d44..00000000000
--- a/install/lang/es_ar/langconfig.php
+++ /dev/null
@@ -1,34 +0,0 @@
-<?php
-
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Automatically generated strings for Moodle installer
- *
- * Do not edit this file manually! It contains just a subset of strings
- * needed during the very first steps of installation. This file was
- * generated automatically by export-installer.php (which is part of AMOS
- * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
- * list of strings defined in /install/stringnames.txt.
- *
- * @package   installer
- * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die();
-
-$string['parentlanguage'] = 'es';
-$string['thislanguage'] = 'Español - Argentina';
diff --git a/install/lang/es_es/langconfig.php b/install/lang/es_es/langconfig.php
deleted file mode 100644
index 64e5358bd55..00000000000
--- a/install/lang/es_es/langconfig.php
+++ /dev/null
@@ -1,35 +0,0 @@
-<?php
-
-// This file is part of Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Automatically generated strings for Moodle installer
- *
- * Do not edit this file manually! It contains just a subset of strings
- * needed during the very first steps of installation. This file was
- * generated automatically by export-installer.php (which is part of AMOS
- * {@link http://docs.moodle.org/dev/Languages/AMOS}) using the
- * list of strings defined in /install/stringnames.txt.
- *
- * @package   installer
- * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die();
-
-$string['parentlanguage'] = 'es';
-$string['thisdirection'] = 'ltr';
-$string['thislanguage'] = 'Español - España';
diff --git a/install/lang/zh_tw/error.php b/install/lang/zh_tw/error.php
index 1bba70d2eeb..39839b25305 100644
--- a/install/lang/zh_tw/error.php
+++ b/install/lang/zh_tw/error.php
@@ -30,6 +30,9 @@
 
 defined('MOODLE_INTERNAL') || die();
 
+$string['cannotcreatedboninstall'] = '<p>無法建立資料庫</p>
+<p>指定之資料庫並不存在。使用者並未有權限建立資料庫</p>
+<p>網站管理員需查明資料庫之組態.</p>';
 $string['cannotcreatelangdir'] = '無法建立語言資料夾。';
 $string['cannotcreatetempdir'] = '無法建立暫存資料夾。';
 $string['cannotdownloadcomponents'] = '無法下載元件。';