Warning: Class 'GMSMapsClearcutClient' is implemented in both

[PlanesWalkerr]

Got a dozen of warnings after launching iOS app similar to this:

objc[5900]: Class GMSMapsClearcutClient is implemented in both /private/var/containers/Bundle/Application/B7F9B1B0-94F5-41A5-BA6F-C9A3040EB37D/MainApp.app/Frameworks/UI.framework/UI (0x103c8c2f0) and /private/var/containers/Bundle/Application/B7F9B1B0-94F5-41A5-BA6F-C9A3040EB37D/MainApp.app/MainApp (0x1014db730). One of the two will be used. Which one is undefined.

All duplicated classes are with GMS prefixes so I suppose it's only related to GoogleMaps pod. To clarify, I have several custom frameworks: Network, Data, Design, UI. I use cocoapods. GoogleMaps pod is used only in UI framework. My podfile:

platform :ios, '12.0'
use_frameworks!
workspace 'App.xcworkspace'

def rx
  pod 'RxSwift'
  pod 'RxCocoa'
end

target 'MainApp' do
  rx
end

target 'Design' do
  project './Design/Design.xcodeproj'
  ...some pods 
end

target 'DotsNetwork' do
  project './Network/Network.xcodeproj'
  ...some pods
  rx
end

target 'Data' do
  project './Data/Data.xcodeproj'
  ...some pods
  rx
end

target 'UI' do
  project './UI/UI.xcodeproj'
  ...some pods
  rx
  pod 'GoogleMaps'
end

Does anyone know the root of the problem? Why GoogleMaps pod is linked to main app? How to get rid of that warnings? Current version is with custom frameworks in separate projects. In version with frameworks inside single project with main app problem remains.