Cant get anything to render from FCP X through Compressor

You're using Compressor 4 right?

I think there was and issue with the FX Factory plugin. You can look in Library/Plugins. If you see it just remove it and try again.

You can also try exporting from FCPX to ProRes and manually running the ProRes file through compressor. See if you get the same error.

I think 2045 is just a generic compressor failed code. Unless someone know what it means.

Try updating to the latest version from their website.

http://www.noiseindustries.com/blog/announcements/fxfactory-3-0-2-effects-final- cut-pro-motion-after-effects/