Index: trunk/core/kernel/parser/tags.php
===================================================================
diff -u -N -r6714 -r7391
--- trunk/core/kernel/parser/tags.php	(.../tags.php)	(revision 6714)
+++ trunk/core/kernel/parser/tags.php	(.../tags.php)	(revision 7391)
@@ -290,7 +290,7 @@
 		}
 		else
 		{
-			trigger_error('can\'t process tag '.$this->Tag,E_USER_WARNING);
+			trigger_error('can\'t process tag '.$this->Tag.' in '.$this->Prefix,E_USER_WARNING);
 		}
 	}
 
@@ -388,7 +388,7 @@
 		else {
 			// use original prefix_special found in templates (parameter names in form $ParamName found in it will not be replaced with values)
 			list ($prefix, $tag) = explode(':', $splited[0], 2); //$prefix = $this->getPrefixSpecial();
-			
+
 			if (isset($this->NamedParams['_ignore_missing_'])) {
 				if (!$this->Application->prefixRegistred($prefix)) return array();
 			}