/usr/share/glib-2.0/schemas/org.ayatana.indicator.datetime.gschema.xml:4:1 Error on line 4 char 1: <enum id='time-enum'> already specified. This entire file has been ignored.

[Norbert]

Steps to reproduce:
1. Have Ubuntu MATE 20.10 installed
2. Upgrade or install some package which have glib triggers

Expected result:
* no error messages in APT/dpkg output

Actual result:

```
Processing triggers for libglib2.0-0:amd64 (2.64.4-1) ...
/usr/share/glib-2.0/schemas/org.ayatana.indicator.datetime.gschema.xml:4:1 Error on line 4 char 1: <enum id='time-enum'> already specified. This entire file has been ignored.

```

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: ayatana-indicator-datetime 0.8.0-1
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu44
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: MATE
Date: Wed Aug 26 13:32:05 2020
SourcePackage: ayatana-indicator-datetime
UpgradeStatus: Upgraded to groovy on 2020-08-25 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sai Vinoba (saivinob)]

I see this error message when trying to reinstall 'ayatana-indicator-datetime' package.

I tried reinstallation of 'ayatana-indicator-datetime' because the latest package would not show date in the panel. Ref https://bugs.launchpad.net/ubuntu/+source/ayatana-indicator-datetime/+bug/1893244.

[Sai Vinoba (saivinob)]

For the 'ayatana-indicator-datetime' package, the issue resolved (no more schema error as above) after removing 'indicator-datetime' package. Possible conflicts.

[Bill (franksmcb) (franksmcb)]

This issue is still occurring for a a user upgrading to Ubuntu MATE 20.10.
Panel will not show clock after upgrade.

As suggested in post #4 doing an apt remove ayatana-indicator will resolve this issue