“/Applications/Xcode.app: a sealed resource is missing or invalid” error while validating Xcode installation

Question

Today I got the memo from Apple as probably every other Apple developer about potentially infected Xcode installations. (https://developer.apple.com/news/?id=09222015a)

Answer 1

I was getting the same message "a sealed resource is missing or invalid". However i was able to rectify the issue by going into the App Store and downloading the latest version of Xcode - Version 7.0 (7A220), and this seems to have rectified the issue.

Although i did first try updating Xcode through the updates section on the App Store, but for some reason this didn't work. So i would recommend going into the App Store > Search for Xcode > Then install the latest version available to you.