1 files changed, 3 insertions, 1 deletions

diff --git a/framework/TApplication.php b/framework/TApplication.php
index 665ed076..f4d8c124 100644
--- a/framework/TApplication.php
+++ b/framework/TApplication.php
@@ -768,10 +768,12 @@ class TApplicationConfiguration extends TComponent
 						$p=realpath($configPath.'/'.$path);

 					if($p===false || !is_dir($p))

 						throw new TConfigurationException('appconfig_aliaspath_invalid',$id,$path);

+					if(isset($this->_aliases[$id]))

+						throw new TConfigurationException('appconfig_alias_redefined',$id);

 					$this->_aliases[$id]=$p;

 				}

 				else

-					throw new TConfigurationException('appconfig_aliasid_required');

+					throw new TConfigurationException('appconfig_alias_invalid');

 			}

 			foreach($pathsNode->getElementsByTagName('using') as $usingNode)

 			{