[Solved] HTTP 500 once user starts test

edited August 2017 in Peer Support

Fresh install on Ubuntu 16.04 - PHP 7.1 with sample data. In testing the Tao application, I chose to publish (deliver) the sample test that comes with the install, and made it available to Guest account. When attempting the test using Guest account, I can see the test is available, but starting the test ends up with a blank page on Chrome. IE shows HTTP500 error.

I checked my apache logs and found this: [Fri Aug 04 09:54:43.877211 2017] [php7:error] [pid 3603] [client] PHP Fatal error: Cannot use qtism\common\datatypes\Float as Float because 'Float' is a special class name in /var/www/html/taoQtiTest/helpers/class.TestSession.php on line 31, referer:htt$$/taoDelivery/DeliveryServer/runDeliveryExecution?deliveryExecution=http%3A%2F%2Ffakeservername%2fakeinstance.rdf%23i15018584825034113

any help would be much appreciated


  • Resolved by installing php5.6 and switching from 7.1 to running php 5.6

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