Receive "Symbol's value as variable is void: kill-region" with Emacs 29.0.50

[hungptit]

Expected behavior

Emacs can start successfully.

Actual behavior

I receive the below error message when starting Emacs 29.0.50.

Symbol's value as variable is void: kill-region

Steps to reproduce the problem

• Build the latest version of Emacs, i.e 29.0.50
• Open the new Emacs then we will see the above error message

The problem will go away if we

• Disable this line (crux-with-region-or-line kill-region) in the prelude-editor.el
• Do not load prelude-web.el

Environment & Version information

Emacs version

GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.16.0) of 2021-12-20

Operating system

Gentoo Linux.

I can also reproduce this issue on Centos 7.8 and macOS.

[billsacks]

I also received this error when native comp was trying to compile the prelude code with emacs 28. I found that adding

(require 'crux)

just before

(crux-with-region-or-line kill-region)

solved the issue.

[hungptit]

@billsacks Thanks a lot for your suggestion. I have pulled a simple MR using your suggested fix here

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contribution and understanding!