Index: trunk/core/kernel/utility/factory.php
===================================================================
diff -u -r2600 -r3330
--- trunk/core/kernel/utility/factory.php	(.../factory.php)	(revision 2600)
+++ trunk/core/kernel/utility/factory.php	(.../factory.php)	(revision 3330)
@@ -83,10 +83,13 @@
 			$name=rtrim($name,'.');
 			if( isset($this->Storage[$name]) ) return $this->Storage[$name];
 
-			if(!isset($this->realClasses[$pseudo_class]))
+			if (!isset($this->realClasses[$pseudo_class]))
 			{
-				if( $this->Application->isDebugMode() ) $GLOBALS['debugger']->appendTrace();
-				trigger_error('RealClass not defined for pseudo_class <b>'.$pseudo_class.'</b>', E_USER_ERROR);
+				if( $this->Application->isDebugMode() ) $this->Application->Debugger->appendTrace();
+				$error_level = $this->Application->isInstalled() ? E_USER_ERROR : E_USER_WARNING;
+				trigger_error('RealClass not defined for pseudo_class <b>'.$pseudo_class.'</b>', $error_level);
+				$false = false;
+				return $false;
 			}
 
 			$funs_args = func_get_args();