Route not defined , custom page

Route [filament.admin.pages.settings] not defined.

public function panel(Panel $panel): Panel
    {
        return $panel
            ->default()
            ->id('admin')
            ->path('admin')
            ->login()
            ->profile()
            ->passwordReset()
            ->colors([
                'primary' => Color::Slate,
            ])
            ->navigationItems([
              ..........................................
            ])
            ->navigationGroups([
            .........................................
            ])
            ->userMenuItems([
                MenuItem::make()
                    ->label('Settings')
                    ->url(route('filament.admin.pages.settings'))
                    ->icon('heroicon-o-cog-6-tooth'),
            ])
            ->discoverResources(in: app_path('Filament/Resources'), for: 'App\\Filament\\Resources')
            ->discoverPages(in: app_path('Filament/Pages'), for: 'App\\Filament\\Pages')
            ->pages([
                //Pages\Dashboard::class,
            ])
            ->widgets([
                     ...........................
            ])
            ->plugin(FilamentSpatieRolesPermissionsPlugin::make())
            ->middleware([
                     ...............
            ])
            ->authMiddleware([
                Authenticate::class,
            ])
            ->maxContentWidth('full')
            ->topNavigation();
    }