001+ Fatal error: Uncaught Error: Call to undefined function imagecreatefrompng() in /home/goufei/omc/php-7.0.30/ext/gd/tests/func.inc:86
002+ Stack trace:
001- The images are equal.
002- int(842163455)
003+ #0 %s/imagecolorallocatealpha_basic.php(12): test_image_equals_file('/home/goufei/om...', Resource id #4)
004+ #1 {main}
005+ thrown in /home/goufei/omc/php-7.0.30/ext/gd/tests/func.inc on line 86