Warning: require_once(./vendor/autoload.php): failed to open stream: No such file or directory in F:\wwwroot\wx\install_qcloud_sdk.php on line 5

Fatal error: require_once(): Failed opening required './vendor/autoload.php' (include_path='.;C:\php\pear') in F:\wwwroot\wx\install_qcloud_sdk.php on line 5