problems installing with CocoaPods

[luicm]

Hello,
I've recently had to reinstall pods in my project and I am getting this error in CocoaPods:

Timepiece-library does not specify a Swift version and none of the targets (Pods) integrating
it have the SWIFT_VERSION attribute set.
Please contact the author or set the SWIFT_VERSION attribute in at least one
of the targets that integrate this pod.
Is it possible to fix? thank you very much