Warning: require_once(PEAR.php) [function.require-once]: failed to open stream: No such file or directory in /home1/pastseve/php/XML/Parser.php on line 55

Fatal error: require_once() [function.require]: Failed opening required 'PEAR.php' (include_path='/home1/pastseve/php/XML:.:/usr/lib64/php') in /home1/pastseve/php/XML/Parser.php on line 55