I am using the Xcode 8.0 GM. I created a default single-view app with my deployment target set to 9.0.
In my Podfile I\'m targeting the bleeding edge Swift 3 branch:
Not sure if this helps anyone but just in case.. I tried to add Alamofire to a sample quick app on Xcode 8.0 GM using the CocoaPods standalone app.. I kept getting the Convert to swift 2.3 or 3.0 window.. but then I tried from the command line to pod update and it worked. Have no idea why.. I assume the underlying commands for the standalone app are the same.. so not sure what made the difference. In any case after 30 minutes of wasted time mine works.
This is the command line screenshot.. same pod file