I recently stepped over an issue during iOS app development for one of my customers. If the user switches to the Emoji-Keyboard on her iPhone during text input in a UITextField or UITextView and uses some of the icons the backend system for that app could not handle this. Implementing Emoji-Support on the server side would be a high effort.

The Situation
I have an Xcode project for an iOS app with 10 targets creating different variants of the app. I was able to archive all except one of the targets. On building an archive of this target Xcode crashed with

(NSInvalidArgumentException): -[DVTFilePath compare:]: unrecognized selector sent to instance 0x406368fe0