[BUG[: Error on Route::getRouteId() when mounting collections

[niden]

Discussed in https://github.com/orgs/phalcon/discussions/16394

^{Originally posted by hugohiram August 8, 2023}
Hello,

I have started migrating a project made on Phalcon 3 to the latest version of Phalcon (5.2.3) with PHP 8.2.8.

When mounting the first collection, I get the following error:
Fatal error: Phalcon\Mvc\Router\Route::getRouteId(): Return value must be of type string, int returned in Unknown on line 0

This is how the code is:

use Phalcon\DI\FactoryDefault;
use Phalcon\Mvc\Micro;
use Phalcon\Mvc\Micro\Collection;
use CustomNamespace\Controllers\AccountController;

$di = new FactoryDefault();
$app = new Micro($di);

$accountCollection = new Collection();
$accountCollection
		->setPrefix('/v1/account')
		//->setHandler('\CustomNamespace\Controllers\AccountController')
		->setHandler(AccountController::class, true);
		//->setLazy(true);
$accountCollection->get('/', 'get');

$app->mount($accountCollection);

I understand that the method "get" has changed the second param to accept a callable as the $handler instead of mixed, but I don't know if its related to the error I am getting. However in the documentation I see that there are examples similar to what I am posting, so I assume that this is still correct.

https://docs.phalcon.io/5.0/en/api/phalcon_mvc#mvc-micro-collection

Any ideas of what is wrong here?

Thanks.

[niden]

This has been resolved in #16415