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Warning: require(./vendor/autoload.php): failed to open stream: No such file or directory in C:\xampp7\htdocs\edgpens\edg\tabs.php on line 8

Fatal error: require(): Failed opening required './vendor/autoload.php' (include_path='C:\xampp7\php\PEAR') in C:\xampp7\htdocs\edgpens\edg\tabs.php on line 8