nginx - 无法打开主脚本

我收到错误消息:

FastCGI sent in stderr: "Unable to open primary script: /home/messi/web/wordpress/index.php (No such file or directory)" while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: www.domain.com, request: "GET / HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.domain.com

here are my configuration files:

/etc/php5/fpm/php.ini

cgi.fix_pathinfo=0
doc_root =
user_dir =
....

/etc/php5/fpm/php-fpm.conf

[global]
pid = /var/run/php5-fpm.pid
error_log = /var/log/php5-fpm.log
include=/etc/php5/fpm/pool.d/*.conf

/etc/php5/fpm/pool.d/www.conf

[www]
user = www-data
group = www-data
listen = /var/run/php5-fpm.sock
listen.owner = www-data
listen.group = www-data
listen.mode = 0666
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
chdir = /
security.limit_extensions = .php .php3 .php4 .php5
php_flag[display_errors] = on
php_admin_value[error_log] = /var/log/fpm-php.www.log
php_admin_flag[log_errors] = on

/etc/nginx/nginx.conf

user  nginx;
worker_processes  1;
error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;
events {
    worker_connections  1024;
}
http {
    include       /etc/nginx/mime.types;
    server_tokens off;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log  /var/log/nginx/access.log  main;
    sendfile        on;
    #tcp_nopush     on;
    keepalive_timeout  65;
    #gzip  on;
    include /etc/nginx/sites-enabled/*;
}

在/ etc/nginx的/启用的站点 - /WordPress的

server {
    listen   80;
    server_name www.domain.com;
    root /home/messi/web/wordpress;
    error_log /var/log/nginx/err.wordpress.log;
    index index.php;
    location / {
        try_files $uri $uri/ /index.php?$args;
    }
    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }
    location = /robots.txt {
        allow all;
        log_not_found off;
        access_log off;
    }
    location ~ /\. {
        deny all;
    }
    location ~* /(?:uploads|files)/.*\.php$ {
        deny all;
    }
    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_pass unix:/var/run/php5-fpm.sock;
            fastcgi_index index.php;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include /etc/nginx/fastcgi_params;
    }
}

设置用户权限:

#adduser www-data messi
#chown -R www-data:www-data /home/messi/web
#chmod -R 664 /home/messi/web/wordpress

我该如何解决这个问题？谢谢