Mr. Ehresman has put together a "HOW TO" of methods for submitting assignments through Canvas. Both our TSC Technology Department and the company who provides the Canvas system know there is a problem with our submissions from Google Drive but there is not, yet, a solution to the problem. In the meantime, we are using several work-around alternatives to submitting assignments directly from student Google Drives. If your student is having submission issues, particularly on assignments they are trying to submit from home, feel free to use any of these methods. You may also wish to let your student's teacher know about the issue by email.
Mr. E's Helpful How-to Submit An Assignment In CANVAS Guide
This guide includes some videos to show you what the Canvas and Google screens would look like when you go through this process.