protected function handleAuth(){
    $login = $this->request->getUser();
    $password = $this->request->getPassword();

    $user = $this->get('doctrine.orm.entity_manager');

    if (!$user)
    {
        return $this->sendResponse(array('msg'=>'User not found'),404);
    }
    $user = $user[0];

    if(!password_verify($data['password'], $user->getUserPass())){
        return $this->sendResponse(array('msg'=>'Invalid credentials'),401);
    }

    return true;
}

Error: Call to a member function get() on a non-object
in vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php at line 391