Method
"Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface::process()" might add "void" as a native return type declaration in the future. Do the same in implementation
"FM\ElfinderBundle\DependencyInjection\Compiler\TwigFormPass" now to avoid errors or add an explicit @return annotation to suppress this message.
This fixes the warning:
Method "Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface::process()" might add "void" as a native return type declaration in the future. Do the same in implementation "FM\ElfinderBundle\DependencyInjection\Compiler\TwigFormPass" now to avoid errors or add an explicit @return annotation to suppress this message.