Error when trying to install plugin in a fresh install

[rborcherds]

Winter CMS Build

dev-develop

PHP Version

8.1

Database engine

MySQL/MariaDB

Plugins installed

No response

Issue description

When I use the web backend interface to install a plugin, I get this error

"Attempt to read property "created_at" on null" on line 1048 of ......../modules/system/classes/UpdateManager.php

Steps to replicate

Go to the Updates & Plugins page and click on any of the these buttons at the top of the page:

Check for Update
Install Plugins
Install Themes

Workaround

Use composer at the command prompt to install the plugins. I have not found a workaround in the web interface.

[bennothommo]

@borcherds-ralph Composer is currently the only way truly supported in Winter for installing plugins and themes.

[LukeTowers]

This particular error has been reported many times, it was introduced in 1.2.4 and has already been fixed on develop.