I accidentally deleted smooth by angle node in blender 4.2 ,How should I recover it?

I deleted Node tree Auto smooth (or maybe called smooth by angle ) in new version of blender (4.2) , and then I couldn’t use an add-on … In order to recover the default node - AUTO SMOOTH (or SMOOTH BY ANGLE) I’ve re-installed the blender ,but it still not working… How should I recover the default node AUTO SMOOTH(or SMOOTH BY ANGLE) in new version of blender (4.2) ?

This problem has been bothering me for a long time, and for someone who is just starting to use Blender, it is a very tricky problem. Can anyone provide the following help? Thank you.

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Uninstall the Carver Add-on…( UNcheck the check mark and select REMOVE)…close the preferences…close Blender and then re-start…
Re-Install the carver addon…

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Although it still reports an error, The add-on can be used now .

Thanks You !!!