Is anyone using Marand's web-template project? I doesn't build

I’m trying to build the project GitHub - better-care/web-template: WebTemplate implementation for openEHR CDR

To generate some test cases for the HiGHmed’s compliance test suite.

I have tried many things and failed miserably Error on build on /LocaleBasedValueConverter.kt: (23, 29) · Issue #1 · better-care/web-template · GitHub

Maybe others have better luck with it and can point me in the right direction.