Path alias as arguments in views I would like to pass path alias as arguments to a views page. I tried the two methods one and two but unfortunately this doesn't works. 

What I want to do is, example.com/box/portfolio link should show the example.com/box/45, 45 is node of portfolio. My views page path is box/% and I used the arguments as Node Id.
Looking into the Views Alias module, it does exactly what you need. Rather than making the change during the Views argument validation, this module will create a path alias to this View for every taxonomy term that can be an argument on the Views you select. Thus, example.com/box/45 can be accessed via example.com/box/portfolio, etc.