XCode 10.2 cannot compile Mac Example project

[martindufort]

I'm trying to compile your example Mac project.
Project settings Swift compiler is set to 4.2 (there is no 4.2.1 option) regardless of the error message.

I'm getting the following error:
Module compiled with Swift 4.2.1 cannot be imported by the Swift 5.0.1 compiler

Please advise.
Thanks

[nadimalam]

I'm getting a similar error also:

Module compiled with Swift 4.2.1 cannot be imported by the Swift 5.1.3

How to fix this please?

[martindufort]

I'm starting to think that this framework and the associated Kite Compositor app is close to a "near death experience". We do not get any responses or feedback from the developers.