following pods are integrated into targets that do not have the same Swift version

Question

I am updating my project to Swift 3. When updating some of my cocoapods to swift 3, I receive the following message in terminal, after running pod install:

Answer 1

For CocoaPods App v.1.1.1 this problem was solved by setting Use legacy Swift Language Version to Unspecified in Build Settings section for all targets.

Probably it's an app bug - all targets had the same settings but CocoaPods app complaining only about one of them.

UPD: to be able to compile project I had to change it back from Unspecified to No