Manually Remove an Add-on

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Is there a way to manually remove an add-on (or two)? I got sideways with a couple of add-ons this morning and have spent the day fixing the site. The site is visible again and I still have issues. I have tried to remove them from the "Extend Concrete" page and Project page with no luck. Any information would be appreciated.

 
Adreco replied on at Permalink Reply
Adreco
If you have FTP access to your install, you'll find them in your "packages" folder. Delete them from your server and site there when all else fails.