set the "document root" to the public folder inside your project

Thanks for yours answers.
ciadmin: I created a virtual host. so I can access  my application through http://code
I changed the name of the folder to code instead of CI4.
But returns the error message ( see image)

I downloaded twice the code from official website of Codeigniter 4 an the error is the same.
what can I do?
thanks again.

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