get Route [filament.admin.auth.login] not defined. error

Route::get('/login', function () {
    $url = url()->previous();
    $routeName = app('router')->getRoutes()->match(app('request')->create($url))->getName();
    $panelId = explode('.', $routeName)[1];
    $panel = Filament::getPanel($panelId);
    Filament::setCurrentPanel($panel);
    return redirect()->to(Filament::getLoginUrl());
})->name('login');