"ScriptError: Exception: Action not allowed" when using non-default account

[charlee]

Error ScriptError: Exception: Action not allowed occurs when clicking the "Convert" button with non-default account when logged in with multiple accounts.

Steps to reproduce

1. Login google with two google accounts
2. Ensure Markdown Converter is installed for both accounts.
3. Switch to the 2nd account.
4. Open a document, select text, run add-on, then click "Convert"

The add-on sidebar can be correctly opened, but the "Convert" button shows error ScriptError: Exception: Action not allowed.

[charlee]

This is due to a Google Apps Script bug. There are a couple of workarounds that helps scripts to detect this error and prompt users to take workarounds, but they are unstable, and do not provide an actual solution.

The only workaround is to logout all google accounts and login with the account that wants to use this add-on.

[aioue]

Instantly hit this bug. Should be mentioned on the addon page - I probably wouldn't have installed if I had known, and lots of people won't bother to come to github.