Symfony2: ContextErrorException: Catchable Fatal Error: Argument 1 passed to […]::__construct() must implement interface […] none given

Question

The problem:

Any time I try to access the application I get this error:

ContextErrorException: Catchable Fatal Error: Argument 1 passed to PL\\OrderBundle\\Entity\\OrderHasComment::__construct() must implement interface Symfony\\Component\\Security\\Core\\SecurityContextInterface, none given, called in /var/www/html/apps/portal_de_logistica/vendor/sonata-project/doctrine-orm-admin-bundle/Model/ModelManager.php on line 416 and defined in /var/www/html/apps/portal_de_logistica/src/PL/OrderBundle/Entity/OrderHasComment.php line 48

What I'm doing wrong?

Answer 1

PL\\OrderBundle\\Entity\\OrderHasComment 's constructor asks for a mandatory argument but don't you provide it when you create a new instance of the object.

You're creating a new OrderHasComment (whatever that is) like this:

$object = new OrderHasComment() // <- missing argument 

Remove that - it won't be needed anymore once your listener calls something like setContext(...) and it's not needed to create the object ... so it shouldn't be mandatory anyways.

// remove the mandatory argument or provide a default (i.e. $context = null)
public function __construct(ContextInterface $context) /
{
    // ...

... should become:

public function __construct()
{

This solves the issue that's responsible for the exception.