Clean router SSR not work

[yuliantosb]

Hello, I learning nextjs but I got stucked error in dynamic url server side, my code is same like yours, but I still get error 404 not found and on terminal display error like this

Client pings, but there's no entry for page: /_error

Anyone can help me please, thanks

refrence : https://nextjs.org/learn/basics/server-side-support-for-clean-urls/create-our-custom-route