Swift 4 pod install error

[xPryds]

I received the following error when trying to install pod. Any tips?

[!] CocoaPods could not find compatible versions for pod "RxSwift":
  In snapshot (Podfile.lock):
    RxSwift (= 4.1.2)

  In Podfile:
    RxLocationManager (~> 2.0) was resolved to 2.0.0, which depends on
      RxSwift (~> 3.0)

    RxSwift (~> 4.0)

Specs satisfying the `RxSwift (~> 4.0), RxSwift (= 4.1.2), RxSwift (~> 3.0)` dependency were found, but they required a higher minimum deployment target.

[erolando]

same error :(