"Cannot create a file when that file already exists." error

I am using Advanced Installer Enterprise and my requirement is to build an installer that downloads/installs an .exe setup file from remote location.

I followed these steps:

1. Create a project using Enterprise template.


2. Create a Featured-Based package using New URL Prerequisite (with correct Display Name, URL, and Silent install parameter /SILENT).

But whenever I run my new installer, I get the follow error (see image below) when it finish downloading my .exe setup file from remote location.

Error Screenshot: http://ift.tt/18fGt6z

Is this an Advanced Installer error or is this an error from my OS?

I am using Windows 7 with Advanced Installer 11.8.

Any help would be appreciated.

thanks