Caddyfile:16: input is not formatted with 'caddy fmt'

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1

1. Caddy version (caddy version):

devel
https://github.com/francislavoie/caddy/tree/udp-conn

2. How I run Caddy:

service caddy start

a. System environment:

Linux localhost 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux
systemd

b. Command:

service caddy start

c. Service/unit/compose file:

[Unit]
Description=Caddy
Documentation=https://caddyserver.com/docs/
After=network.target network-online.target
Requires=network-online.target

[Service]
User=caddy
Group=caddy
ExecStart=/usr/bin/caddy run --environ --config /etc/caddy/Caddyfile
ExecReload=/usr/bin/caddy reload --config /etc/caddy/Caddyfile
TimeoutStopSec=5s
LimitNOFILE=1048576
LimitNPROC=512
PrivateTmp=true
ProtectSystem=full
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target

d. My complete Caddyfile or JSON config:

{
        servers :443 {
                protocol {
                        experimental_http3
                }
        }

        servers :80 {
                protocol {
                        allow_h2c
                }
        }
}

jihye.pw www.jihye.pw {
        header {
                Strict-Transport-Security "max-age=31536000; includeSubdomains; preload"
                X-Content-Type-Options nosniff
                X-Frame-Options DENY
                Referrer-Policy no-referrer-when-downgrade
        }
        root * /home/zzori/jihye.pw
        file_server
        encode zstd gzip
        php_fastcgi unix//run/php/php8.0-fpm.sock
}

3. The problem I’m having:

caddy adapt --pretty

4. Error messages and/or full log output:

[WARNING][caddyfile] Caddyfile:16: input is not formatted with ‘caddy fmt’

5. What I already tried:

6. Links to relevant resources:

2

What’s the question exactly? Did you try running caddy fmt to see what changes it makes to your Caddyfile?