No Code Attached Yet Information Required
avatar hendrikbehncke
hendrikbehncke
20 Sep 2023

Steps to reproduce the issue

Open the Versions of an article or category

Actual result

There are two PHP Warnings

Warning
: Cannot declare class \joomla\cms\table\contenttype, because the name is already in use in
/var/www/html/joomla-5/libraries/loader.php
on line 576

Warning
: Cannot declare class \joomla\cms\table\contenthistory, because the name is already in use in
/var/www/html/joomla-5/libraries/loader.php
on line
576

Screenshot 2023-09-20 at 16 44 06

System information (as much as possible)

Joomla 5.0 Beta 2
PHP 8.1.23

avatar hendrikbehncke hendrikbehncke - open - 20 Sep 2023
avatar joomla-cms-bot joomla-cms-bot - change - 20 Sep 2023
Labels Added: No Code Attached Yet
avatar joomla-cms-bot joomla-cms-bot - labeled - 20 Sep 2023
avatar richard67
richard67 - comment - 20 Sep 2023

@hendrikbehncke Is it a new installation of 5.0.0 Beta 2? Or has it been upgraded from a lower version? If the latter: From which version?

avatar HLeithner
HLeithner - comment - 20 Sep 2023

can't replicate the issue with 5.0.0 beta2...

avatar Quy Quy - change - 20 Sep 2023
Labels Added: Information Required
avatar Quy Quy - labeled - 20 Sep 2023
avatar hendrikbehncke
hendrikbehncke - comment - 21 Sep 2023
avatar richard67
richard67 - comment - 21 Sep 2023

@hendrikbehncke And the Beta 1 was a new installation? Or did that also have an update history?

avatar hendrikbehncke
hendrikbehncke - comment - 21 Sep 2023

@richard67 Had another look into it. It happens when the Backward Compatibility Plugin is enabled.
Happens in a fresh 5.0 installation and in an upgraded version from 4.3.4

avatar alikon
alikon - comment - 21 Sep 2023

confirmed it happen when the b/c plugin is enabled

avatar HLeithner HLeithner - change - 21 Sep 2023
Status New Closed
Closed_Date 0000-00-00 00:00:00 2023-09-21 15:37:28
Closed_By HLeithner
avatar HLeithner HLeithner - close - 21 Sep 2023
avatar HLeithner
HLeithner - comment - 21 Sep 2023

fixed the one of the messages in #41853 so closing this here, but I can't find the second one

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