Hi all,
The following post is in the Quiz forum but also relates to the grade report: https://moodle.org/mod/forum/discuss.php?d=253883. It was originally in the courses and course formats forum but I moved it to the Quiz forum as I thought it was better suited there.
Does anybody have any idea about it please.
Kind regards,
Gareth
Gareth,
Thanks so much for your help. You correctly diagnosed the problem as related to a duplicate record in the database and directed me into the correct area in your responses in Tracker http://tracker.moodle.org/browse/MDL-31441 I did the search you suggested, but I still did not see duplicates. So, I took a more radical approach, based on what you said.
I edited the grade_object.php file that was generating the error message and changed line 161: "if (count($instances) > 1 {" to a 2. Then I went back to my site, tried to enter the quiz again, and it opened! Now I was able to deleted all attempts. Then back to line 161 and changed it back to a 1. Now, all works. But this still doesn't explain why it happened.
I am going back into the database to look for whatever I might find. Also will review my questions, their scoring, and so on. Also made a backup of the quiz as a .mbz and may delete the current version and re-import it.
Again, thanks for all your guidance on this. I will also follow the bug fix to see where it goes. Seems like this is something that should not be able to occur.
Rod Wolford
