Note: You are currently viewing documentation for Moodle 3.6. Up-to-date documentation for the latest stable version of Moodle is likely available here: error/quiz/cannotstartgradesmismatch.
This error is obtained if you attempt a quiz with a maximum grade of more than zero containing only questions with a grade of zero.
The problem can be fixed by editing the quiz and changing either the maximum grade and/or the question grades.
- Quiz FAQ for the answer to the question 'Can I have a quiz that is not graded?'