Unable to display specific view for 404 errors in Laravel - laravel

Question

I have the following code inside my app/start/global.php file:
App::missing(function($exception){
return Response::view('missing', array('url' => Request::url()), 404);
});
And I have a file called missing.blade.php at app/view. However, the above code gives me a FatalErrorException, telling me "Call to a member function getPath() on a non-object". The formatting of the otherwise pretty error page that I got the above information from is also messed up.
But everything works fine when I change my code in global.php to the following:
App::missing(function($exception){
return Response::make("Page not found", 404);
});
I don't get what's going on. How can I display a specific view when a route is not found?
EDIT:
Here is my missing.blade.php file:
#extends('master')
#section('header')
<h2>404 Error</h2>
#stop
#section('content')
<p>
Unable to locate page.
</p>
#stop
EDIT 2:
Also inside my app/views folder, I have a master.blade.php file with the following structure:
...
#yield('header')
...
#yield('content')
...

Answer 1

The following should work for you and gives you more control on other errors as well:
App::error(function(Exception $exception, $code)
{
Log::error($exception);
switch ($code)
{
case 403:
return 'Your 403 message';//or load any custom view
break;
case 404:
return Redirect::to('/');//or load any custom view
break;
case 500:
return 'Your 500 Error Message';//or load any custom view
break;
default:
return Redirect::to('/');//or load any custom view
}
});