Don't use Windows, but don't think I've ever seen %2F's in urls that Moodle uses ... that's a '/' character.
In the error you can see file=%2Fblah%2F which, if your brower doesn't translate the %2F's into / characters can't find the file.
Since this is a json error, do you have the json extension to PHP loaded?
Above is a total guess ... like I said, don't think I've ever seen that before.
'spirit of sharing', Ken
I have the same error. My Moodle is hosted, I created the questions in Notepad and I am using Windows 10
Hi Veronika,
the end effect is always the same in Moodle since a broken JSON response will be always shown as in your screenshot: to find the root reason for that you need to explore the responses of the server in the Developer Tools of your browser.
An example of what you can find, unrelated to your specific issue: https://tracker.moodle.org/browse/MDL-60691?focusedCommentId=597479&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-597479 .
HTH,
Matteo
Hi Veronika, I did the exact same thing, I uploaded an Aiken format multiple choice quiz to the question bank and when I tried to access it via the quiz creation page I got the same error. Can I ask if you have resolved the issue?
many thanks,
Richard
I did, the error occurred because of a question instance not deleted properly from the question bank.
