Old exams throwing error

[Thomas Winyard]

Hi all,

I have been using NUMBAS for a while and I have just come back to some old exams, that previously were working fine, but are now no longer working.

When I test each individual question it works fine. But when I use "Test Run" for the whole exam it throws an error.

Does anyone know how to fix this?

The error is the following:

Numbas Error: Part a gap 0: Cannot read property 'args' of null

and it has the following notes:

Numbas Error: Part a gap 0: Cannot read property 'args' of null

at c.error (https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:30436:15)

at Object.Numbas.createPartFromXML (https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:29784:14)

at c.loadFromXML (https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:32236:30)

at c [as loadFromXML] (https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:40039:15)

at Object.Numbas.createPartFromXML (https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:29775:14)

at https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:35785:43

at https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:38077:38

at new Promise ()

at https://numbas.mathcentre.ac.uk/numbas-previews/en-GB/exam-34300-1060-e-assessment-1/scripts.js:38072:24

Many thanks for any help,

Tom

[Thomas Winyard]

Just to say I spent some time over the weekend and managed to fix the problem here (though I did it entirely by accident).

If anyone else has this issue let me know and I will try and retrace my steps to solve it.

cheers,

Tom