Why composer cant install "sylius cart"?

When I run "composer require "sylius/cart-bundle" I get this output:

composer require "sylius/cart-bundle"
You are running composer with xdebug enabled. This has a major impact on runtime performance. See http://ift.tt/1NnGiU0
Using version ^0.16.0 for sylius/cart-bundle
./composer.json has been updated
> php artisan clear-compiled
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - sylius/order-bundle v0.16.0 requires sylius/resource-bundle 0.16.* -> satisfiable by sylius/resource-bundle[v0.16.0].
    - sylius/cart-bundle v0.16.0 requires sylius/order-bundle 0.16.* -> satisfiable by sylius/order-bundle[v0.16.0].
    - Installation request for sylius/cart-bundle ^0.16.0 -> satisfiable by sylius/cart-bundle[v0.16.0].
    - Conclusion: remove symfony/expression-language v3.0.0
    - Conclusion: don't install symfony/expression-language v3.0.0
    - sylius/resource-bundle v0.16.0 requires symfony/expression-language ^2.7 -> satisfiable by symfony/expression-language[v2.7.0, v2.7.1, v2.7.2, v2.7.3, v2.7.4, v2.7.5, v2.7.6, v2.7.7, v2.7.8, v2.7.9, v2.8.0, v2.8.1, v2.8.2].
    - Can only install one of: symfony/expression-language[v2.7.0, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.1, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.2, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.3, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.4, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.5, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.6, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.7, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.8, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.7.9, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.8.0, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.8.1, v3.0.0].
    - Can only install one of: symfony/expression-language[v2.8.2, v3.0.0].
    - Installation request for symfony/expression-language == 3.0.0.0 -> satisfiable by symfony/expression-language[v3.0.0].


Installation failed, reverting ./composer.json to its original content.

I run this on Laravel 5.2. and I need clarification of this error, any ideas ?

via Chebli Mohamed