https://github.com/calda/WatchKitTimePicker これ使いたいけど、CocoaPodではなくてCarthage（カルタゴ） brew install carthage carthage bootstrap --platform watchOS してから carthage update --platform watchOS

*** Invalid cache found for XLPagerTabStrip, rebuilding with all downstream dependencies *** Building scheme "Alamofire iOS" in Alamofire.xcworkspace のとき developer.apple.com が良さげ