When I move my program to the XCode8, I got this error: Alamofire compiled with older version of Swift language (2.0) than previous files (3.0) for architecture x86_64. I ha
Update your cocoa pods and clear your derive data folder and try to run again.
In xcode 8 derived data folder changed,
Go to File -> Workspace setting -> then see this image,
Click on -> on path and clear that derived data folder.