Warning: require_once(PEAR/Downloader.php) [function.require-once]: failed to open stream: No such file or directory in C:\wamp\www\projet_symfony\sysmed\lib\vendor\symfony-1.4.0\test\unit\plugin\sfPearDownloaderTest.class.php on line 11

Fatal error: require_once() [function.require]: Failed opening required 'PEAR/Downloader.php' (include_path='.;C:\php5\pear') in C:\wamp\www\projet_symfony\sysmed\lib\vendor\symfony-1.4.0\test\unit\plugin\sfPearDownloaderTest.class.php on line 11