Plugin warning after yag installation

[BerndSx]

Right after installing yag I get the following Warning when I insert the plugin on my gallery page:

PHP Warning
Core: Error handler (BE): PHP Warning: Declaration of Tx_PtExtbase_Registry_Registry::addItem($object, $label, $overwrite = false) should be compatible with PunktDe\PtExtbase\Collection\Collection::addItem($itemObj, $id = 0) in /is/htdocs/###############/www/ftest/typo3conf/ext/pt_extbase/Classes/Registry/Registry.php line 33

[benabbottnz]

I saw in multiple other issues and around the net that this has something to do with using PHP 7.

[rei-we]

Beside using latest downloads from github, have a look at pt_extbase #16. It solved my problems.