Index: branches/RC/core/kernel/utility/factory.php
===================================================================
diff -u -N -r8929 -r11711
--- branches/RC/core/kernel/utility/factory.php	(.../factory.php)	(revision 8929)
+++ branches/RC/core/kernel/utility/factory.php	(.../factory.php)	(revision 11711)
@@ -201,6 +201,10 @@
 				trigger_error('Real Class <b>'.$real_class.'</b> is not registered with the Factory', E_USER_ERROR);
 			}
 			if(!file_exists(FULL_PATH.$this->Files[$real_class])) {
+				if ($this->Application->isDebugMode()) {
+					$this->Application->Debugger->appendTrace();
+				}
+
 				trigger_error('Include file for class <b>'.$real_class.'</b> (<b>'.FULL_PATH.$this->Files[$real_class].'</b>) does not exists', E_USER_ERROR);
 			}