Module compiled with swift 4.0 cannot be imported in swift 3.1

Question

Apparently I have managed to build my project in Xcode 9 beta and now I only get the error

Module compiled with swift 4.0 cannot be imported in swift 3.1<

Answer 1

You have two options that you can do:

Clean the project and then try to re-build your solution and see if it works.

If it don´t work and you still get the same error message then do the following steps and it should work for you:

1. Open your podfile and remove Alamofire
2. Run pod update
3. Re-add Alamofire to your podfile
4. Run pod update
5. When this is done, clean your project and run it