Juste after a fresh install with sf4.3 and without any configuration i've got this.
In ParameterBag.php line 100:
[Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException]
You have requested a non-existent parameter "locale". Did you mean one of these: "kernel.default_locale", "stof_doctrine_extensions.default_locale"?
Exception trace:
() at /var/www/html/vendor/symfony/dependency-injection/ParameterBag/ParameterBag.php:100
Symfony\Component\DependencyInjection\ParameterBag\ParameterBag->get() at /var/www/html/vendor/symfony/dependency-injection/ParameterBag/EnvPlaceholderParameterBag.php:67
Symfony\Component\DependencyInjection\ParameterBag\EnvPlaceholderParameterBag->get() at /var/www/html/vendor/symfony/dependency-injection/Container.php:112
Symfony\Component\DependencyInjection\Container->getParameter() at /var/www/html/vendor/2lenet/easyadmin-plus-bundle/src/DependencyInjection/LleEasyAdminPlusExtension.php:62
Juste after a fresh install with sf4.3 and without any configuration i've got this.