Whoops, looks like something went wrong.
(1/1) ClassNotFoundException
Attempted to load class "GuardAuthenticationFactory" from namespace "Symfony\Bundle\SecurityBundle\DependencyInjection\Security\Factory".
Did you forget a "use" statement for another namespace?

in SecurityBundle.php line 59
at SecurityBundle->build(object(ContainerBuilder))
in Kernel.php line 797
at Kernel->prepareContainer(object(ContainerBuilder))
in Kernel.php line 768
at Kernel->buildContainer()
in Kernel.php line 636
at Kernel->initializeContainer()
in Kernel.php line 135
at Kernel->boot()
in Kernel.php line 89
at Kernel->boot()
in Kernel.php line 195
at Kernel->handle(object(Request))
in index.php line 74