Objective-C sample code build failed

[weather-report]

We would like to develop UPnP Media Player on iOS.
Unfortunately, sample code in Objective-C has build issue.

• Development Environment
  OS : macOS Mojave (Ver.10.14.6)
  IDE : Xcode (Ver.10.3)

I retrieved your mupnp project from github.
And I successfully build mupnp library according to INSTALL documentation.
But upnpbrowser project is failed to build, following message is shown,

• Error Message
  Showing Recent Messages
  👎 Undefined symbol: OBJC_CLASS$_CGUpnpControlPoint

Could you tell me the way to build project ?