zero size shared memory zone "proxied" in nginx

I installed nginx with nginx-extras to get (Http Upload Progress Module). Then i tried to use it following this documentation ( example on the bottom of the page ) -> http://wiki.nginx.org/HttpUploadProgressModule. After inserting this one line (`track_uploads proxied 30s;`) in my configuration , i get the following error nginx: [emerg] zero size shared memory zone "proxied" Somewhere on the internet i found , that someone suggested to insert `upload_progress proxied 10m;` into nginx.conf , and after inserting it i started geting the following error: nginx: [emerg] the size 10485760 of shared memory zone "proxied" conflicts with already declared size 0 in /etc/nginx/nginx.conf:75 This the part of the config , where are inserted this line.... ``` location ~ \.php$ { include /etc/nginx/fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_param SCRIPT_FILENAME /home/cha0s/learnphp$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_script_name; track_uploads proxied 1m; } ``` So the question is , what should i write in nginx.conf to resolve this error ? Thanks in advance.