How I fixed Nginx 502 Bad Gateway error

How I fixed Nginx 502 Bad Gateway error

Question: How to fix this  Error : nginx error: 502 Bad Gateway  /

Answer :

Your  problem will be fixed by adding two lines to Nginx configuration file /etc/nginx/nginx.conf   

http {
...
fastcgi_buffers 8 16k;
fastcgi_buffer_size 32k;
...
}

Restart   Nginx

is done.