-
The web configurator got removed. So you need to remove the
_configurator
routing entry fromapp/config/routing_dev.yml
. -
The generated
app/bootstrap.php.cache
does not include autoloading anymore. So you need to add the autoloading code in your front controllersweb/app.php
,web/app_dev.php
,app/console
andapp/phpunit.xml.dist
(bootstrap config). -
If you have been using the Symfony 3 directory structure already, you need to overwrite the cache and log directories in your
AppKernel
as it is also done in Symfony 3 now (seeapp/AppKernel.php
).