Index: branches/version-2/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php
===================================================================
--- branches/version-2/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php	(revision 16741)
+++ branches/version-2/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php	(revision 17501)
@@ -206,11 +206,11 @@
         // 規格分類が登録されていない規格は表示しないようにする。
         $arrClassCatCount = SC_Utils_Ex::sfGetClassCatCount();
-
-        foreach($arrClass as $key => $val) {
-            if($arrClassCatCount[$key] > 0) {
-                $this->arrClass[$key] = $arrClass[$key];
-            }
-        }
-
+        if( count($arrClass) > 0 ){
+            foreach($arrClass as $key => $val) {
+                if($arrClassCatCount[$key] > 0) {
+                    $this->arrClass[$key] = $arrClass[$key];
+                }
+            }
+        }
         // 商品名を取得
         $objQuery = new SC_Query();