I have a problem while archiving my app.
I created a new target for an iOS 8 extension.
When I archive the app, I receive a warning.
The warning is <
What worked for me was the following:
I edited the scheme that I was archiving. In that window, I selected 'Run' and then the tab 'Info'. In 'Build Configuration' I had changed it to 'Release'. I just changed it to 'Debug' (option by default) and that warning went away.
I hope this helps.