In order to disable building/running the NSExtension you build, you should:
- Click the project file in the project navigator
- Click the containing app target (the one you DO want to run)
- Click
Build Phases
tab - Open
Target Dependencies
orEmbed App Extensions
- Remove the extension (the one you DON’T want to run)
To bring it back, simply click the +
sign in the same place and re-add it.