Can't get Craft running on Heroku I'm familiar with Heroku, but new to Craft CMS. 
In order to get a site running, I followed this tutorial: https://medium.com/@aj1215/craft-cms-on-heroku-79b991665b0b#.8b561b1b4

But the site isn't functioning. My Heroku app just results in: Application Error An error occurred in the application and your page could not be served. Please try again in a few moments. If you are the application owner, check your logs for details.

My development server runs fine. But I have no idea what I need to do to get the heroku app to function. I'm pulling my hair out.

I've tried everything I can think of, but can't get it to work. I'm not sure what I'm doing wrong.

These are messages toward the end of my Heroku logs:

2016–01–31T03:09:21.480751+00:00 app[web.1]: nginx: [emerg] “server” directive is not allowed here in /app/nginx_app.conf:1
2016–01–31T03:09:21.475721+00:00 app[web.1]: Starting nginx…
2016–01–31T03:09:21.481090+00:00 app[web.1]: Process exited unexpectedly: nginx
2016–01–31T03:09:21.481236+00:00 app[web.1]: Going down, terminating child processes…
2016–01–31T03:09:22.183035+00:00 heroku[web.1]: Process exited with status 1
2016–01–31T03:09:22.182791+00:00 heroku[web.1]: State changed from starting to crashed
2016–01–31T03:09:27.185620+00:00 heroku[router]: at=error code=H10 desc=”App crashed” method=GET path=”/” host=paradata.herokuapp.com request_id=1e502143–94ac-4aea-b34b-3087addd1d20 fwd=”172.11.56.78" dyno= connect= service= status=503 bytes=


enginx_app.conf file:

        location / {
            # try to serve file directly, fallback to rewrite
            try_files $uri @rewriteapp;
        }
        location @rewriteapp {
            # rewrite all to index.php
            rewrite ^(.*)$ /index.php?p=$1 last;
        }
        location ~ ^/(index)\.php(/|$) {
            client_max_body_size 20M;
            fastcgi_pass heroku-fcgi;
            fastcgi_split_path_info ^(.+\.php)(/.*)$;
            include fastcgi_params;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            fastcgi_param HTTPS on;
        }


this is my craft/config/db.php file:

&lt;?php

$url = parse_url(getenv("CLEARDB_DATABASE_URL"));

return array(

    'server' =&gt; $url["host"],

    'user' =&gt; $url["user"],

    'password' =&gt; $url["pass"],

    'database' =&gt; substr($url["path"],1),

    'tablePrefix' =&gt; 'craft',

);
I solved it.

I needed to remove calls to 'server' and 'http' in my enginx_app.conf file. Now the file only makes calls to 'location'.