Temporal-server: Unable to load configuration: config file corrupted: no config files found within /etc/temporal/config

Hi I am following this documentation

doing it in linux box and facing error when i modified the
temporal.service file like this
[Unit]
Description=Temporal Service
After=network.target

[Service]
User=root
Group=root
ExecStart=/usr/bin/temporal-server -r / -c /etc/temporal/config -e /usr/bin/temporal-server start

[Install]
WantedBy=multi-user.target
the error is this
Jan 6 19:15:48 ip-100-64-71-86 systemd: Started Temporal Service.
Jan 6 19:15:48 ip-100-64-71-86 temporal-server: 2025/01/06 19:15:48 Loading config; env=/usr/bin/temporal-server,zone=,configDir=/etc/temporal/config
Jan 6 19:15:48 ip-100-64-71-86 temporal-server: Unable to load configuration: config file corrupted: no config files found within /etc/temporal/config.
what should be the config file here? nothing was said on the page about the configDir

corrected ExecStart=/usr/bin/temporal-server -r / -c /etc/temporal/config -e /usr/bin/temporal-server start

command to ExecStart=/usr/bin/temporal-server -r / -c /etc/temporal/-e temporal-server start