Are you using the ZERO ONE Template? You have specified “Kirby 4”. As far as I know, the template has not yet been adapted for v4. Error messages are therefore to be expected.
At least I correctly recognized that he uses the ZERO template
I have already worked with Kirby for 6 hours today. Now it’s really time for me: “Enjoy the weekend!”
Zero One Kirby 4 is 99,99% finished (not yet released).
Now we are in the process of refreshing demos and documentation, and testing all small things. As always we couldn’t do “just an update”, some big improvements and an abundance of smaller ones are in this update too.
I am looking forward to the new version and hope that you have taken enough time to optimize and test everything. With such a large project, a version jump is not easy to manage. The new features of Kirby 4 are fun and offer useful additions and simplifications.