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This page documents known developer concerns with the
Classroom add-ons API.
Error messages
Error messages may not yet offer enough information needed to diagnose an issue.
Most errors are covered in the descriptions of specific methods in the
reference documentation. Some errors are specific to add-ons.
If you're unable to troubleshoot an error on your own, reach out to your Google
contacts for support.
The add-on sign-in flow can be disrupted if the end user has enabled a pop-up
blocker. See the manage pop-up blockers section of the frictionless sign-in
page for more information about how to implement the sign-in flow in the event
that end users enable pop-up blockers.