Why won't Laravel 6.5.2 run locally?

Question

Laravel

Decided to try running the new version locally.. The error is not googled at all..
Symfony\Component\Debug\Exception\FatalErrorException
Declaration of Symfony\Component\Translation\TranslatorInterface::setLocale($locale) must be compatible with Symfony\Contracts\ Translation\LocaleAwareInterface::setLocale(string $locale)

Answer 1

The point, apparently, is in the symfony/translation 4.4.0 update. Add "symfony/translation": "4.3.8" to composer.json to rollback the version. Helped me. Hope it helps you too)