Looks like the count method of CustomerRepository overrides the Doctrine\ORM\EntityRepository::count(array $criteria) which throws below error while trying to use the repository:
Warning: Declaration of Sylius\Bundle\CoreBundle\Doctrine\ORM\CustomerRepository::count(): int should be compatible with Doctrine\ORM\EntityRepository::count(array $criteria)
Renaming the method to countCustomers() should fix the problem.
Which version of Doctrine do you use? Current version in our composer.lock is 2.5.6 and there is not such method in Doctrine\ORM\EntityRepository for this version 馃槃
See https://github.com/doctrine/doctrine2/pull/6003 - it'll be part of ORM 2.6
馃憤 the question is - should we fix something (with BC break, btw) what is not bug yet. I think we can leave it as it is and take care about it when we'll upgrade to doctrine 2.6. /cc @Sylius/core-team
Personally I'd do it now otherwise dependent on how strict you are on B/C you possibly lock to ORM 2.5 until Sylius 2.0.
I would say the more you can upgrade before 1.0, the better. Saves BC issues afterwards. The upgrade from beta.3 to 1.0 is already full of BC, so a bit more won't harm anyone ;-)
We could also try not to extend EntityRepository in our own repositories :)
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I would say the more you can upgrade before 1.0, the better. Saves BC issues afterwards. The upgrade from beta.3 to 1.0 is already full of BC, so a bit more won't harm anyone ;-)