"Data source "<email address hidden>" does not support OAuth 2.0 authentication" shown each time Evolution starts

[Nicholas Harvey]

Running Ubuntu 19.10 Gnome fully patched.
MY GMail account is added via Gnome Online Accounts, with just Mail, Contacts and Calendar selected.
Then, when I launch Evolution. I see an error displayed each time stating "Data source "<email address hidden>" does not support OAuth 2.0 authentication".

I am not sure whether two-factor authentication matters, but I have tried disabling and re-enabling it and it has made no difference.

I can duplicate this on two separate installations so I assume this problem could be widespread.

Thanks
Nick

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: evolution 3.34.1-2
ProcVersionSignature: Ubuntu 5.3.0-19.20-generic 5.3.1
Uname: Linux 5.3.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 30 19:45:17 2019
InstallationDate: Installed on 2019-04-29 (184 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
SourcePackage: evolution
UpgradeStatus: Upgraded to eoan on 2019-10-19 (11 days ago)
modified.conffile..etc.default.apport:
 # set this to 0 to disable apport, or to 1 to enable it
 # you can temporarily override this with
 # sudo service apport start force_start=1
 enabled=0
mtime.conffile..etc.default.apport: 2019-05-01T13:13:33.160866

[Nicholas Harvey (mobile-harvey)]

Reviewing this again I propose this bug is closed as it only affects one machine so most likely a config-specific issue rather than a bug. Thanks.

[Nicholas Harvey (mobile-harvey)]

Spoke too soon. Please ignore my previous comment. This is still happening, this time on Ubuntu 20.04 beta.

I see the error every time whe launching Evolution. Oddly, I do not see this on my OpenSUSE Tumbleweed machine. Ubuntu has Evolution 3.34.1-3 whereas Tumbleweed has 3.34.3 in case that is relevant.

[Jeff Fortin Tam (kiddo)]

This might be https://gitlab.gnome.org/GNOME/evolution/-/issues/538 ?

[Jeffrey Walton (noloader)]

Also see "Evolution ignores authentication changes; uses OAuth even after change," https://gitlab.gnome.org/GNOME/evolution/-/issues/1052