RxFlow: Type AppFlow does not conform to protocol Flow

I cloned your example project, deleted Carthage support and created my own Podfile and tried to compile, but I occured an errors like this: Type 'WatchedFlow' does not conform to protocol Flow and etc Flow’s

When I created a new empty project, linked pods, created my own Flow class like AppFlow, I also occured this error.

My environment:

• Xcode 9.2
• Swift 4

My Podfile:

use_frameworks!
target 'RxFlowDemo' do
  pod 'RxSwift'
  pod 'RxCocoa'
  pod 'RxFlow'
  pod 'Reusable'
end

What I’m doing wrong?