Grav error with develop plugin admin and with the Grav and admin download

Hello I have first downloaded the full package of Grav including the admin plugin on going to the admin I get this error:
Creation of dynamic property RocketTheme\Toolbox\StreamWrapper\ReadOnlyStream::$context is deprecated

I am running php 8.2 and than I downloaded the develop version which also gave errors saying $(var) was deprecated fixed that by changing it to ($var) in lines 1148 and 1150 in system/src/grav/common/utils.php than I installed the admin plugin and gave this error straight away.