The app in the App Store called "Cleaner for Xcode" displays the following warning message after trying to "clean". I understand it has to do with permissions, but not sure how to fix it. I'm also not sure how to get any support for this app nor contact the developer.
The error is: "Need ~/Library/Developer permission to analyze and clean Xcode files"
I assume this means I need to give the app permissions to edit the Developer folder, but not sure how to do that.