Kotlinx datetime js legacy file

In the kotlin-dce directory there is a file with this name:
Kotlin-DateTime-library-kotlinx-datetime-js-legacy
But if I implement chart.kt, I can’t run my browser application caused by this error:
Module not found: Error: Can’t resolve ‘Kotlin-DateTime-library-kotlinx-datetime-jsLegacy’ in 'C:\Users\gina\…\kotlin-dce’