Warning: include(HTTP/OAuth/Consumer.php): failed to open stream: No existe el archivo o el directorio in /opt/lampp/htdocs/apps/files_external/3rdparty/Dropbox/OAuth/PEAR.php on line 15

Warning: include(): Failed opening 'HTTP/OAuth/Consumer.php' for inclusion (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/apps/files_external/3rdparty/Dropbox/OAuth/PEAR.php on line 15

Fatal error: Class 'Dropbox_Exception' not found in /opt/lampp/htdocs/apps/files_external/3rdparty/Dropbox/OAuth/PEAR.php on line 19