Warning: getimagesize(./examples/test.jpg): failed to open stream: No such file or directory in /opt/lampp/htdocs/opac/lib/phpthumb/phpThumb.php on line 37

Fatal error: Uncaught exception 'Exception' with message 'Image file not found: ./examples/test.jpg' in /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php:193 Stack trace: #0 /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php(172): ThumbBase->triggerError('Image file not ...') #1 /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php(110): ThumbBase->fileExistsAndReadable() #2 /opt/lampp/htdocs/opac/lib/phpthumb/GdThumb.inc.php(96): ThumbBase->__construct('./examples/test...', false) #3 /opt/lampp/htdocs/opac/lib/phpthumb/ThumbLib.inc.php(127): GdThumb->__construct('./examples/test...', Array, false) #4 /opt/lampp/htdocs/opac/lib/phpthumb/phpThumb.php(60): PhpThumbFactory::create('./examples/test...') #5 {main} thrown in /opt/lampp/htdocs/opac/lib/phpthumb/ThumbBase.inc.php on line 193