Are you using “use client” in the page/layout where the metadata is defined?

No, its page.jsx it says server side

Give me a minimal reproduction repository then

Pages.jsx file

import { Metadata } from "next";

//The metadata object and generateMetadata function exports are only supported in Server Components.
export const metadata = {
title:
"journeai.com: A personalized and detailed trip itinerary for any travel idea or place in the world in seconds using ai",
icon: "/favicon.ico",
description:
"Hyperpersonalized travel itinaries with 2d and 3d maps in seconds. Get street view images, visa and currency information the weather at destination, saving trips and support for 9 languages.",
};

export default function Home() {
return (
<AuthContext>
<main
style={{
background: "white",
width: "100%",
height: "100%",
margin: "0px",
padding: "0",
}}

<App />
</main>
</AuthContext>
);
}

i mean a minimal reproduction repository – a minimal nextjs app that i can clone and debug

Do you have a working example any chance? Cannot do on my phone but if nothong is wrong with the code

Any working nextjs app router applications you can find is a working example because their metadata works fine

I pretty much used this fro upgrading tonextjs13 https://github.com/3a1b2c3/chat_lc

which works just fine, maybe helps me debug

Solved now for meta tags, i dont see icon

Minor problem but if my favicon.ico is in public should this work?
export const metadata= {
icon: "/favicon.ico",
};

for favicon use this https://nextjs.org/docs/app/api-reference/file-conventions/metadata/app-icons

but if you really, really want to use metadata object export, then put it in public/favicon.ico and use { icons: { icon: '/favicon.ico' } } (just don't, just put it in app/favicon.ico)

Whatever works in next.js 13

it was fine before my upgrade

thanks again