Route with namespace in Laravel 4 - ERROR: Whoops, looks like something went wrong. FatalErrorException: Error: Class 'PatrickMaciel\Admin\BaseController' not found in /home/..../app/controllers/admin/ProjectsController.php line 3

BaseController.php

<?php namespace PatrickMaciel;

class BaseController extends Controller {

  /**
	 * Setup the layout used by the controller.
	 *
	 * @return void
	 */
	protected function setupLayout()
	{
		if ( ! is_null($this->layout))
		{
			$this->layout = View::make($this->layout);
		}
	}

}

HomeController.php

<?php namespace PatrickMaciel;

class HomeController extends BaseController {

  /*
	|--------------------------------------------------------------------------
	| Default Home Controller
	|--------------------------------------------------------------------------
	|
	| You may wish to use controllers instead of, or in addition to, Closure
	| based routes. That's great! Here is an example controller method to
	| get you started. To route to this controller, just add the route:
	|
	|	Route::get('/', 'HomeController@showWelcome');
	|
	*/

	public function index()
	{
		return View::make('home.index');
	}

}

ProjectsController.php

<?php namespace PatrickMaciel\Admin;

class ProjectsController extends BaseController {

  /**
	 * Display a listing of the resource.
	 *
	 * @return Response
	 */
	public function index()
	{
		echo 'oi'; exit;
	}

	/**
	 * Show the form for creating a new resource.
	 *
	 * @return Response
	 */
	public function create()
	{
		//
	}

	/**
	 * Store a newly created resource in storage.
	 *
	 * @return Response
	 */
	public function store()
	{
		//
	}

	/**
	 * Display the specified resource.
	 *
	 * @return Response
	 */
	public function show($id)
	{
		//
	}

	/**
	 * Show the form for editing the specified resource.
	 *
	 * @return Response
	 */
	public function edit($id)
	{
		//
	}

	/**
	 * Update the specified resource in storage.
	 *
	 * @return Response
	 */
	public function update($id)
	{
		//
	}

	/**
	 * Remove the specified resource from storage.
	 *
	 * @return Response
	 */
	public function destroy($id)
	{
		//
	}

}

routes.php

<?php

Route::get('/', 'HomeController@index');
Route::get('admin/projects', 'PatrickMaciel\\Admin\\ProjectsController@index');

// Route::resource('admin/projects', 'admin.ProjectsController');