Django + uWSGI + nginx 502 Internal Error (Permission Denied) - django

Question

I've set up my site based on the instructions here.
However, when I go to the URL specified in my nginx sites-available settings, I just get the default nginx page ("welcome to nginx!"). I've tried looking at this question, but even deleting /etc/nginx/sites-enabled/default doesn't seem to do anything.
My /etc/nginx/sites-available/eng_blog file:
server {
listen 80;
server_name eng.camdar.io;
location = /favicon.io {access_log off; log_not_found off;}
location /static/ {
root /root/eng_blog;
}
location / {
include uwsgi_params;
uwsgi_pass unix:/root/eng_blog/eng_blog.sock
}
}
My /etc/uwsgi/sites/eng_blog.ini
[uwsgi]
project = eng_blog
base = /root
chdir = %(base)/%(project)
home = %(base)/Env/%(project)
wsgi-file = eng_blog/wsgi.py
master = True
processes = 5
socket = %(base)/%(project)/%(project).sock
chmod-socket = 666
uid = www-data
gid = www-data
vacuum = true
/etc/init/uwsgi.conf
description "uWSGI application server in Emperor mode"
start on runlevel [2345]
stop on runlevel [!2345]
setuid root
setgid www-data
exec /usr/local/bin/uwsgi --emperor /etc/uwsgi/sites
The tutorial claims that, after symlinking /etc/nginx/sites-enabled/eng_blog to /etc/nginx/sites-available/eng_blog, things should just "work", but I'm still seeing the default Nginx screen. Help?
EDIT:
I fixed the above issue by including sites-enabled in nginx.conf. However, now uwsgi seems to get permission denied errors, which is strange because I'm pretty sure I set all of the permissions right.