[SOLVED] Warning: Your ROOT_URL in app.ini is undefined


After installation, a notification is displayed in the web interface:
Your ROOT_URL in app.ini is undefined but you are visiting https://git.srv.com/ You should set ROOT_URL correctly, otherwise the web may not work correctly.

I can’t understand what is the problem.

My configuration:

Gitea 1.16.8 (installed from binary)
Nginx as reverse proxy.
I configured according to the official documentation.

[server] section from /etc/gitea/app.ini:

SSH_DOMAIN       = git.srv.com
DOMAIN           = git.srv.com
HTTP_ADDR        =
HTTP_PORT        = 3000
ROOT_URL         = https://git.srv.com/
DISABLE_SSH      = false
SSH_PORT         = 22
LFS_CONTENT_PATH = /var/lib/gitea/data/lfs
LFS_JWT_SECRET   = xxxxxxxxxxxxxx
OFFLINE_MODE     = false
LANDING_PAGE     = login

Nginx config:

server {
    listen 443 ssl http2;
    server_name git.srv.com;
    ssl_certificate /etc/letsencrypt/live/srv.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/srv.com/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/srv.com/chain.pem;

    resolver  valid=300s;
	resolver_timeout 5s;
	ssl_stapling on;
	ssl_stapling_verify on;
	ssl_session_timeout 5m;
	ssl_session_cache shared:SSL:10m;
	ssl_protocols TLSv1.2;
	ssl_prefer_server_ciphers on;
	ssl_ciphers EECDH:+AES256:-3DES:RSA+AES:RSA+3DES:!NULL:!RC4;
	ssl_dhparam /etc/ssl/certs/dhparam.pem;
	add_header Strict-Transport-Security "max-age=31536000";

	location /_/static/assets {
		alias /var/www/gaba/www/srv.com/git/public;

	location / {
    	client_max_body_size 0;
    	proxy_set_header Host $host;
    	proxy_set_header X-Real-IP $remote_addr;
    	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    	proxy_set_header X-Forwarded-Proto $scheme;
    	proxy_max_temp_file_size 0;
    	proxy_redirect off;
    	proxy_read_timeout 120;

How to fix it?
Web interface and remote operations with repositories (via ssh and https) work fine.

I soldev this problem.
My mistake was that I used the main branch from github to build static resources.
It was necessary to use version with 1.16.8 tag, which corresponds to the binary file.

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