I get this error when I run my Today extension for iOS:
dyld: Library not loaded: @rpath/libswiftCore.dylib
Referenced from: /Users/andy/Library/Developer/CoreSimulator/Devices/724FF0C3-6622-4D12-865A-90244C8C63C1/data/Containers/Bundle/Application/30D8974B-ED1A-4F3A-8958-E9B7AA8901A9/App.app/PlugIns/Today.appex/Today
Reason: image not found
I've restarted, uninstalled, installed xcode, rebooted my machine, created a fresh Today extension and I still got this error :-/
Same problem on simulator and on device..
Do you have any idea?