Linker Issue - Bridging Header

[ARod]

I have been trying to incorporate BlufiLibrary on my SWIFT project. The linker keeps saying

Undefined symbols for architecture arm64:
"OBJC_CLASS$_BlufiClient", referenced from:
objc-class-ref in SettingsViewController.o
"OBJC_CLASS$_BlufiScanResponse", referenced from:
objc-class-ref in SettingsViewController.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

1. I dragged the BlufiLibrary as is into my project root directory.
2. Added the Search pathways as describe don this page.

This exception is when I try to declare a blufiClient object.

var blufiClient = BlufiClient()

Any guidance would be greatly appreciated.

NOTE: The App compiles and runs without problems when is completely in Objective-C. I am sure I am forgetting something fundamental.

[lucamininrelab]

I quote the request, we kinldy ask you for an example of a bridging header for swift.