Flarum ParseError after installing an extension with the CLI

sammy2

Hello i'm trying Flarum for the first time, i've been trying to start building my first extension but after i install it i get this error

flarum.ERROR: ParseError: syntax error, unexpected '\' (T_NS_SEPARATOR), expecting identifier (T_STRING) in C:\laragon\www\flarum\packages\edit-button\extend.php:12

i ran this command

flarum-cli init edit-button

said yes to almost everything

and then this one

composer require dev/edit-button *@dev

but i get this error when i activate it form the admin panel

sammy2

nvm found it seems like it put
namespace Dev\\EditButton;
for some reason

and it should have been

namespace Dev\EditButton;