Wrong compile error in IDE for generated Lenses

Sometimes there is an error in your IDE with the generated L object after the Gradle build were successfull.

val name = inspector.sub(L.Person.name)

This is of course confusing and we should try to check if we can tell the IDE where to find this generated sources.

[jwstegemann]

Classes annotated with @Lenses have to be in the commonMain SourceSet (as described here https://docs.fritz2.dev/Lenses.html). Also you should put your data model classes in a package different from root to avoid name conflicts.

We add commonMain to our project template to make this more obvious…

[jamowei]

I had this problem too. IntelliJ Idea also told me about “duplicate roots detected” and that it fixed it by removing some duplicates. I then started to compare my build.gradle.kts with the one from https://github.com/jamowei/fritz2-ktor-todomvc until I found my problem:

    jvm {
        compilations.all {
            kotlinOptions.jvmTarget = "1.8"
        }
        withJava() // remove this
    }

I had to remove the withJava() call and after that IntelliJ Idea didn’t complain anymore and it startet to find the generated lenses (after running gradle jsMainClasses). I don’t even known where I had this from and my project still runs fine in the backend and frontend.

I hope this information can help other people.

Yes, I had the same problem in this project too. And I also had to remove the ẁithJava() call. But then the run tasks stopped working and I must changed more things in my build file in order to get it work again. Now it should work fine without withJava(). Hopefully the current version of build.gradle.kts is a good place to take from.

If you have some improvements please let me know or give me a PR! Thanks