Button creation link.
Hi,
I am currently trying to create a button link from one PDF document to another. I create this via "All Tools" then "Add rich media" or "Prepare a form" then click on "Button". In the action tab, "Open a file" is selected for "Select Action" and then I chose the PDF document I want to open up. After the button has been created, I test it by clicking on it but I recive the error in the screenshot below.

Is anyone able to suggest any ideas.
Thanks.
