From fd6290f356d2661a1720c6dbf93f84d0044746b1 Mon Sep 17 00:00:00 2001
From: Charles Jolley <charles@sproutit.com>
Date: Tue, 3 Nov 2009 14:25:17 -0800
Subject: [PATCH] Better logging when you try to access an unknown target

---
 lib/sproutcore/models/manifest.rb | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/sproutcore/models/manifest.rb b/lib/sproutcore/models/manifest.rb
index 8440fcc..f4d70f6 100644
--- a/lib/sproutcore/models/manifest.rb
+++ b/lib/sproutcore/models/manifest.rb
@@ -277,7 +277,10 @@ def entry_for(filename, opts = {})
         manifest = self
         filename = target_name
       else
-        manifest = target.target_for(target_name).manifest_for(self.variation)
+        if (_manifest_target = target.target_for(target_name)).nil?
+          throw "Cannot file target #{target_name} for entry #{filename}"
+        end
+        manifest = _manifest_target.manifest_for(self.variation)
         manifest.build!
       end