我是所有这些devops的新手,所以请光临我.我正在关注本教程https://medium.com/startup-founder-panel/deploying-a-meteor-app-with-nginx-from-scratch-1332b32e99a5
当我做sudo Nginx -t
我明白了

Nginx: [emerg] "map" directive is not allowed here in /etc/Nginx/sites-enabled/app:2
Nginx: configuration file /etc/Nginx/Nginx.conf test Failed

这是app文件

# this section is needed to proxy web-socket connections
map $http_upgrade $connection_upgrade {
        default upgrade;
        ''      close;
}
# HTTP
server {
        listen 80 default_server;
        listen [::]:80 default_server ipv6only=on;
        location = /favicon.ico {
          root /home/USERNAME/portal/programs/web.browser/app;
          access_log off;
        }
        location ~* "^/[a-z0-9]{40}\.(css|js)$" {
          gzip_static on;
          root /home/USERNAME/portal/programs/web.browser;
          access_log off;
        }
        location ~ "^/packages" {
          root /home/USERNAME/portal/programs/web.browser;
          access_log off;
        }
        # pass requests to Meteor
        location / {
            proxy_pass http://127.0.0.1:8080;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade; #for websockets
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_set_header Host $host;
        }
}

这是Nginx.conf

user www-data;
worker_processes auto;
pid /run/Nginx.pid;

events {
        worker_connections 768;
        # multi_accept on;
}

http {

        ##
        # Basic Settings
        ##

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;
        # server_tokens off;

        # server_names_hash_bucket_size 64;
        # server_name_in_redirect off;

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

        ##
        # SSL Settings
        ##

        ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3,ref: POODLE
        ssl_prefer_server_ciphers on;

        ##
        # Logging Settings
        ##

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

        ##
        # Gzip Settings
        ##
        include /etc/Nginx/mime.types;
        gzip on;
        gzip_disable "msie6";
        # gzip_vary on;
        # 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/javascript text/xml application/xml applicatio
n/xml+RSS text/javascript;
        ##
        # Virtual Host Configs
        ##
        include /etc/Nginx/conf.d/*.conf;
        include /etc/Nginx/sites-enabled/*;
}
#mail {
#       # See sample authentication script at:
#       # http://wiki.Nginx.org/ImapAuthenticateWithApachePHPScript
# 
#       # auth_http localhost/auth.PHP;
#       # pop3_capabilities "TOP" "USER";
#       # imap_capabilities "IMAP4rev1" "UIDPLUS";
# 
#       server {
#               listen     localhost:110;
#               protocol   pop3;
#               proxy      on;
#       }
# 
#       server {
#               listen     localhost:143;
#               protocol   imap;
#               proxy      on;
#       }
#}
include /etc/Nginx/sites-enabled/*;

所以有什么问题？
提前致谢！