Mientras programaba mi aplicación de autenticación en Laravel, me encontré con un error que nunca había visto antes. He estado haciendo una lluvia de ideas durante casi una hora por la causa de este problema, pero aún no puedo encontrar una solución.

Error:

El usuario de clase contiene 3 métodos abstractos y, por lo tanto, debe declararse abstracto o implementar los métodos restantes (Illuminate \ Auth \ UserInterface :: getRememberToken, Illuminate \ Auth \ UserInterface :: setRememberToken, Illuminate \ Auth \ UserInterface :: getRememberTokenName)

Modelo User.php:

<?php

use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableInterface;

class User extends Eloquent implements UserInterface, RemindableInterface {

protected $fillable = [
    "email",
    "username",
    "password",
    "password_temp",
    "code",
    "active",
    "created_at",
    "updated_at",
    "banned"
];

/**
 * The database table used by the model.
 *
 * @var string
 */
protected $table = 'users';

/**
 * The attributes excluded from the model's JSON form.
 *
 * @var array
 */
protected $hidden = array('password');

/**
 * Get the unique identifier for the user.
 *
 * @return mixed
 */
public function getAuthIdentifier()
{
    return $this->getKey();
}

/**
 * Get the password for the user.
 *
 * @return string
 */
public function getAuthPassword()
{
    return $this->password;
}

/**
 * Get the e-mail address where password reminders are sent.
 *
 * @return string
 */
public function getReminderEmail()
{
    return $this->email;
}

}

Y el RegisterController.php

<?php

class RegisterController extends BaseController {

public function getRegister()
{
    return View::make('template.home.register');
}

public function postRegister()
{
    $rules = [
        "email"         => "required|email|max:50|unique:users",
        "username"      => "required|max:50|min:5|unique:users",
        "password"      => "required|max:50|min:6",
        "password_again"=> "required|same:password",
    ];

    $messages = ["required" => "This field is required." ];

    $validator = Validator::make(Input::all(), $rules, $messages);

    if($validator->fails())
    {
        return Redirect::route('register')->withErrors($validator)->withInput();
    } else {
        $email      = Input::get('email');
        $username   = Input::get('username');
        $password   = Input::get('password');
        $code       = str_random(60);

        $user = User::create([
            'email'         => $email,
            'username'      => $username,
            'password'      => Hash::make($password),
            'code'          => $code,
            'activated'     => 0,
            'banned'        => 0
        ]);

        if ($user)
        {
            Mail::send('template.email.activate', ['link' => URL::route('activate', $code), 'username' => $username], function($message) use ($user)
            {
                $message->to($user->email, $user->username)->subject('Account Registration');
            });

            return Redirect::route('register')->with('homeError', 'There was a problem creating your account.');
        }
    }
    return Redirect::route('register')->with('homeError', 'Account could not be created.');
}
}