From 56444fb9275855640b958b92e963684191eb526f Mon Sep 17 00:00:00 2001
From: Vladimir Enchev <vladimir.enchev@telerik.com>
Date: Thu, 9 Jul 2015 11:26:27 +0300
Subject: [PATCH] throw error if page not specified

---
 ui/builder/builder.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ui/builder/builder.ts b/ui/builder/builder.ts
index 5b6458c05..288236120 100644
--- a/ui/builder/builder.ts
+++ b/ui/builder/builder.ts
@@ -217,7 +217,11 @@ function loadCustomComponent(componentPath: string, componentName?: string, attr
     // Add component CSS file if exists.
     var cssFileName = fileName.replace(".xml", ".css");
     if (fs.File.exists(cssFileName) && parentPage) {
-        parentPage.addCssFile(cssFileName);
+        if (parentPage) {
+            parentPage.addCssFile(cssFileName);
+        } else {
+            throw new Error("CSS file found but no page specified. Please specify page in the options!");
+        }
     }
 
     return result;