# Deleting old unsupported plugins

**URL:** <https://forums.realmacsoftware.com/t/deleting-old-unsupported-plugins/46758>\
**Category:** RapidWeaver Classic\
**Created:** [March 16, 2025, 8:50pm UTC](https://forums.realmacsoftware.com/t/deleting-old-unsupported-plugins/46758 "2025-03-16T20:50:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![FlaParrotHead](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/flaparrothead/32/4633_2.png) [@FlaParrotHead](https://forums.realmacsoftware.com/u/FlaParrotHead)\
**Post date:** [March 16, 2025, 8:50pm UTC](https://forums.realmacsoftware.com/t/deleting-old-unsupported-plugins/46758/1 "2025-03-16T20:50:41Z")

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I continue to get the couldn’t obtain principal class for three old/unsuported plugins Lockdown, Pluskit, and Sitemap that I no longer use and want to delete, remove, uninstall ---- for the life of me I cannot find them, there files, or any reference to them other than on the RWC startup page when the error presents itself. . . Thanks.

NOTE: While I know that running under Rosetta removed the error - what I want to do is to delete the plugins since I not want or need them and the developer does not appear to support them under Mac Silicon. . .

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**Author:** ![dan](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/dan/32/28516_2.png) [@dan](https://forums.realmacsoftware.com/u/dan)\
**Post date:** [March 17, 2025, 7:16pm UTC](https://forums.realmacsoftware.com/t/deleting-old-unsupported-plugins/46758/2 "2025-03-17T19:16:44Z")

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You can find (delete or disable) them via the Addons Setting window…

Hope that helps!