Flex Not Working on Ubuntu Using the Gnash Player

Gnash is a free Flash movie player for Ubuntu which works as a standalone player or as a plugin for Firefox and Konqueror.

This is the default (I believe) player installed on Ubuntu 7.10 (the Adobe player isn’t there by default).

I recently tried to load a Flex app in this player and failed, the reason is that Gnash is in alpha state and supports Flash version 7 (and some AS classes for 8.5) only.

Of course you need Flash player 9 to run Flex 2+, so you’ll have to use Adobe’s Flash player for now which thankfully works fine :)

To install the Flash player from the terminal:

sudo apt-get install flashplugin-nonfree

Or to try Gnash:

sudo apt-get install mozilla-plugin-gnash

This will be another interesting project to keep an eye on.