No grade obtained error
Sometimes, evaluation just fails.
We may get any of the following messages:
Evaluation error:
An error occured during question grading (no grade obtained).
Evaluation error:
An error occured during question grading (no grade obtained).
Last execution server message recieved: retrieve:
Server execution error
Evaluation error:
An error occured during question grading (no grade obtained).
<something about error 500>