Bug #89936
Updated by Timo Webler over 4 years ago
The task "\TYPO3\CMS\Core\Command\SiteListCommand":https://github.com/TYPO3/TYPO3.CMS/blob/v10.2.0/typo3/sysext/core/Classes/Command/SiteListCommand.php#L44 is not compatible with symfony 5
Error Message:
<pre>
Uncaught TYPO3 Exception Return value of "TYPO3\CMS\Core\Command\SiteListCommand::execute()" must be of the type int, NULL returned.
thrown in file /var/www/vagrant/releases/20191213105740/vendor/symfony/console/Command/Command.php
in line 258
</pre>
Changelog: https://github.com/symfony/console/blob/master/CHANGELOG.md
> removed support for returning null from Command::execute(), return 0 instead