nginx + uwsgi: -- unavailable modifier requested: 0 --?

view story

http://serverfault.com – I'm following this to install and configure Nginx, uWSGI, and Django on Gentoo. Everything looks good until the last step: Nginx returns the 502 Bad Gateway error and the following appears in the uWSGI log: *** Starting uWSGI 1.2.4 (32bit) on [Mon Sep 10 23:41:29 2012] *** compiled with version: 4.5.3 on 02 September 2012 22:00:55 detected number of CPU cores: 2 current working directory: /var/www/localhost/htdocs/mysite writing pidfile to /var/run/uwsgi/trac.pid detected binary path: /usr/bin/uwsgi your memory page size is 4096 bytes building mime-types dictionary from file /etc/mime.types.. (HowTos)