This site is being deprecated.
Please see the official X‑Plane Support page for help.
Did you download the correct file type? Ideally the blue download button on the webpage will detect the correct operating system for Mac or Windows, but I'm not positive it does the same for Linux. If not, go to this page and to the right of the blue download button are green links to download for either 32 or 64 bit Linux systems.
This site is no longer being actively maintained.