when I open a ktor project, error Cannot invoke "java.nio.file.Path.toString()" because the return value of "java.nio.file.Path.getFileName()" is null

Question

when I open a ktor project in Intellij idea, I see this Error === Cannot invoke "java.nio.file.Path.toString()" because the return value of "java.nio.file.Path.getFileName()" is null

I create a kotlin ktor project using Ktor Project Generator my project setting: Build System : Gradil kotlin Ktor version : 2.3.9 Engine : Nitty

then I download this Project zip file and extract this file and Open this project using Intellij IDEA 2023.3.6 version.

this is Project error image

what is the problem of my project. how can I solve this.