tree ed3ddaaeac368f0227eabab64dce8c024428de8c
parent deeb1380b14a8adca07e3e0b3daf5b1d39054700
author Saurabh <saurabh6790@gmail.com> 1510561378 +0530
committer Nabin Hait <nabinhait@gmail.com> 1510561378 +0530

[fix] if not students in student groups then raise exception (#11537)