Google Add-on for sheets invalid scope - google-apps-script

Question

So following this tutorial I am attempting to extend by adding the add-on via the sidebar. [See the screen shot below] []2
But I am getting this error when attempting to add this auth scope.
Error: invalid_scope
Some requested scopes were invalid. {valid=
[https://www.googleapis.com/auth/gmail.addons.current.message.readonly,
https://www.googleapis.com/auth/script.locale, https://www.googleapis.com/auth/spreadsheets.readonly,
https://www.googleapis.com/auth/gmail.addons.current.action.compose,
https://www.googleapis.com/auth/calendar.addons.execute,
https://www.googleapis.com/auth/drive.addons.metadata.readonly,
https://www.googleapis.com/auth/calendar.readonly,
https://www.googleapis.com/auth/gmail.addons.execute], invalid=
[https://www.googleapis.com/auth/spreadsheets.addons.execute]}
My question is do I need this https://www.googleapis.com/auth/spreadsheets.addons.execute for sheets to see the homepage triggers in my manifest? If not what am I overlooking?

Answer 1

UPDATE
We now have support for Workspace Add-ons in Google Sheets, Google Docs and Google Slides (though it may not be available in all regions as yet)...Google Forms is not yet supported.
What you want to do is not possible as you can only create Editor Add-ons for Google Sheets not GSuite Add-ons.
There are distinct differences between the two.
GSuite Add-ons are currently only applicable to:
Gmail
Google Drive
Google Calendar
Editor Add-ons are currently only applicable to:
Google Sheets
Google Forms
Google Docs
Google Slides
See add-on types documentation for clarification.

Answer 2

Actually you're experiencing this issue because the feature hasn't rolled out yet to your account.
It appears this is a Google Workspace account so you need to navigate to https://admin.google.com/ac/accountsettings/preferences
And select "New Feature"
Then you must select "Rapid Release" and the new Google Workspace add-on feature will be enabled for you probably within 15 minutes but it can take up to 24 hours.
I was experiencing this same issue and once I added this it worked fine.
Also, there isn't an auth scope of https://www.googleapis.com/auth/spreadsheets.addons.execute
You need to simply add https://www.googleapis.com/auth/spreadsheets
and it will work perfectly. Good luck!