Symfony " 'use' statement for another namespace?" issue

I have a problem with namespaces in connecting my entity class to an abstract-type class.

I needed to create an AbstractType Class I called BlogFactory. I intent to use it in my the createAction function of my BlogController.php Entity class for creating blog entries.

My BlogFactory class is created in the Form/Blog directory of my bundle, as the tree structure shows.

.
.
.
src/Blogger/BlogBundle/
├── Controller
│   ├── BlogController.php
│   └── PageController.php
├── DataFixtures
│   └── ORM
│       └── BlogFixtures.php
├── Entity
│   ├── Blog.php
│   ├── Blog.php~
│   └── Enquiry.php
├── Form
│   ├── Blog
│   │   ├── BlogFactory.php
│   │   └── Factory.php
│   └── EnquiryType.php
├── Resources
│   ├── config
│   │   ├── config.yml
│   │   ├── routing.yml
│   │   └── services.yml
.
.
.

In the BlogController.php entity class, I include the following use instruction:

namespace Blogger\BlogBundle\Controller;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Blogger\BlogBundle\Form\Blog\BlogFactory;

class BlogController extends Controller{
.
.
.

with the following createAction function:

public function createAction(){   
        $form = $this->createForm(new BlogFactory(), new Blog(), 
            array(
                'action' => $this->generateUrl('blog_create'),
                'method' => 'POST',
            )
        );

        $form->add('submit', 'submit', array('label'=>'Create'));
        return $form;
    }

Here is the code in my BlogFactory class:

namespace Blogger\BlogBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;

class BlogFactory extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('title');
        $builder->add('author');
        $builder->add('blog');
        $builder->add('image');
    }

    public function getName()
    {
        return 'newblog';
    }
}

However, my problem is I get the following error:

The autoloader expected class "Blogger\BlogBundle\Form\Blog\BlogFactory" to be defined in file "/var/www/Symfony-Blog/src/Blogger/BlogBundle/Form/Blog/BlogFactory.php". The file was found but the class was not in it, the class name or namespace probably has a typo

I'm quite stuck and not sure how to resolve this.

UPDATE:

As suggested by Gnucki, I added namespace Blogger\BlogBundle\Form\Blog; to my BlogFactory.php and use Blogger\BlogBundle\Form\Blog\BlogFactory; to BlogController.php, and got the slightly different error below:

Attempted to load class "Blog" from namespace "Blogger\BlogBundle\Controller".
Did you forget a "use" statement for another namespace?