shared memory zone "media" conflicts with already declared size 0

[atipico]

I am using nginx version: nginx/1.2.6 and facing a similar error:

Starting nginx: nginx: the configuration file /etc/nginx/nginx.conf syntax
is ok
nginx: [emerg] zero size shared memory zone "limit_per_ip"
nginx: configuration file /etc/nginx/nginx.conf test failed
invoke-rc.d: initscript nginx, action "start" failed.

Here's my nginx.conf file:

user www-data;
worker_processes 2;
pid /var/run/nginx.pid;

events {
	worker_connections 768;
	# multi_accept on;
}

http {

	# Cloudflare
	set_real_ip_from 204.93.240.0/24;
	set_real_ip_from 204.93.177.0/24;
	set_real_ip_from 199.27.128.0/21;
	set_real_ip_from 173.245.48.0/20;
	set_real_ip_from 103.22.200.0/22;
	set_real_ip_from 141.101.64.0/18;
	set_real_ip_from 108.162.192.0/18;
	set_real_ip_from 190.93.240.0/20;
	real_ip_header CF-Connecting-IP;
 
	sendfile on;
	tcp_nopush on;
	tcp_nodelay on;
	types_hash_max_size 2048;

	client_body_timeout 10;
	client_header_timeout 10;
	keepalive_timeout 10;
	send_timeout 10;
	#limit_zone limit_per_ip $binary_remote_addr 16m;

	server_tokens off;
	#charset utf-8;

	expires -1; #A negative time sets the Cache-Control header to no-cache

	client_max_body_size       10m;
	client_body_buffer_size    128k;

	# server_name_in_redirect off;

	include /etc/nginx/mime.types;
	default_type application/octet-stream;

	access_log /var/log/nginx/access.log;
	error_log /var/log/nginx/error.log;

	gzip on;
	gzip_disable "msie6";
	gzip_vary on; #you instruct proxies to store both a compressed and
uncompressed version of the content
	# gzip_proxied any;
	gzip_comp_level 6;
	# gzip_buffers 16 8k;
	gzip_http_version 1.1;
	gzip_types text/plain text/css application/json application/x-javascript
text/xml application/xml application/xml+rss text/javascript;

	include /etc/nginx/conf.d/*.conf;
	include /etc/nginx/sites-enabled/*;
}

Thanks for any help.

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,9716,236021#msg-236021