<?php
namespace Wizard;

use Zend\ModuleManager\Feature\AutoloaderProviderInterface;
use Zend\ModuleManager\Feature\ConfigProviderInterface;

class Module implements
    ConfigProviderInterface,
    AutoloaderProviderInterface
{
    public function getConfig()
    {
        return include __DIR__ . '/../../config/module.config.php';
    }

    public function getAutoloaderConfig()
    {
        return array(
            'Zend\Loader\StandardAutoloader' => array(
                'namespaces' => array(
                    __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
                ),
            ),
        );
    }
}

<?php
namespace Wizard;

use Wizard\Service\WizardInitializer;
use Zend\ModuleManager\Feature\AutoloaderProviderInterface;
use Zend\ModuleManager\Feature\ConfigProviderInterface;
use Zend\ModuleManager\Feature\ServiceProviderInterface;

class Module implements
    ConfigProviderInterface,
    AutoloaderProviderInterface
{
    public function getConfig()
    {
        return include __DIR__ . '/../../config/module.config.php';
    }

    public function getAutoloaderConfig()
    {
        return array(
            'Zend\Loader\StandardAutoloader' => array(
                'namespaces' => array(
                    __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
                ),
            ),
        );
    }

    public function getServiceConfig()
    {
        return array(
            'initializers' => array(
                'wizard' => new WizardInitializer(),
            ),
        );
    }
}

Add wizard initializer in service manager
Add wizard initializer in service manager