Grading papers on Canvas using Google Classroom plugin with an iPad

[DesréBarnard]

My students submit written work via the Google Classroom add on (ie as a Google Doc using Google Classroom’s plugin) and I am unable to grade papers on my iPad. The error is that it could not launch. Not sure why. Anyone got a solution?

[NicoletteStaley]

@DesréBarnard Did you select the option to grade the assigment in SpeedGrader when creating the assignment in Canvas?  This option can only be set when the assignment is first created for the Google Assignments LTI, and can't be changed later.