If you get an error message when you try to upload an assignment to the assignments page here are some things you can try:

• clear the cache (see Refresh your Cache for instructions)
• sign out and sign back in
• restart the browser
• try an incognito or private window (See How do I set up browser to private or incognito mode? for instructions)
• try to connect to a wired network or check your wifi connection

If it still does not work, contact your instructor.