Kotlin is not able to resolve all dependencies

I have a android/flutter/kotlin project and I am currently not able to work with kotlin code from within VS Code as some dependencies are marked as unresolved (what is wrong).
I can't give you a description how to reproduce it because this is a bigger project in early edevelopment, but I could provide you a link to the repository so you can try it yourself: https://drive.google.com/file/d/1230fAbYajg9nR2Ug8K-oulbDQW4f77mq/view?usp=sharing

I don't know if I would have to configure someting else in VS Code but the build works fine with Gradle.

Begin with the provided project archive and the VS Code Kotlin extension, comparing unresolved dependencies in VS Code with the successful Gradle build. First establish a reproducible project and identify the configuration or resolution difference; done means the project dependencies resolve correctly in VS Code.

Written by the indexing model from the issue text.