[LogicException] Unable to prepare route for serialization. Uses Closure.

Ran into this little issue when trying to use route:cache on Laravel 5.

Route cache cleared!
[LogicException]
Unable to prepare route [posts/laravel's-new-forelse-construct] for serialization. Uses Closure.

The exception is pretty clear, but it's worth noting that closure type routes will not be compatible when trying to use the route:cache command. You have a couple of options: forgo cached routing and the speed improvement or move your routes into a controller. I did the latter.

// Previously
Route::get('posts/laravel's-new-forelse-construct', function()
{
    return Redirect::to('posts/laravels-new-forelse-construct', 301);
});

// Currently
Route::get('posts/laravel's-new-forelse-construct', 'RedirectsController@getPostsLaravelsNewForelseConstruct');

Now that your routing is handled by a controller instead of a closure you'll be able to cache your routes as you want.