Index: /branches/version-2_13_0/data/class/helper/SC_Helper_PageLayout.php
===================================================================
--- /branches/version-2_13_0/data/class/helper/SC_Helper_PageLayout.php	(revision 23057)
+++ /branches/version-2_13_0/data/class/helper/SC_Helper_PageLayout.php	(revision 23069)
@@ -61,5 +61,10 @@
 
         $objPage->tpl_mainpage = $this->getTemplatePath($device_type_id) . $arrPageData[0]['filename'] . '.tpl';
-
+        
+        if (!file_exists($objPage->tpl_mainpage)) {
+            $msg = 'メイン部のテンプレートが存在しません。[' . $objPage->tpl_mainpage . ']';
+            trigger_error($msg, E_USER_ERROR);
+        }
+        
         $objPage->arrPageLayout =& $arrPageData[0];
         if (strlen($objPage->arrPageLayout['author']) === 0) {