I want to be able to use

main

function inside

jvmMain

to test the library I’m working on, but when I’m trying to run main function it returns

Error: Could not find or load main class MainKt

for following function in

Main.kt

fun main() {
    runBlocking {
        userRepository.registerUser("")
    }
}

Are there any additional steps I should make to be able to use this?

is the JDK configured correctly for the project?

Are you referring to this one?

and on the target? Do you have something like this 👇?

jvm {
            compilations.all {
                kotlinOptions.jvmTarget = "1.8"
            }
        }

Thanks! I didn’t have this, but I tried to add this and it still doesn’t work

Here works normally 🤔

Main you need the args in the signature ?

fun main(args: Array<String>)

@faogustavo thank you for checking, everything seems the same on my side, so I have no idea why it’s not working @mbonnin it doesn’t help unfortunately What is more - I saw this discussion and message: https://kotlinlang.slack.com/archives/C3PQML5NU/p1588501634307700?thread_ts=1588441008.300900&cid=C3PQML5NU and I cloned “PeopleInSpace” project and tried to run it there (according to the message I linked to) and it failed with exactly the same message, so I guess it must be a JDK (?) linking problem or something like that

Thats curious, I’m having the same problem if I try to run with an android target 🤔

You mean main function inside

androidMain

?

yep

You are lucky, because you at least can run it inside

jvmMain

which is not working in my case 🙂

In this KMM project it doesn’t work even in the jvmMain 😬

That is really interesting

maybe in the kotlin issue tracker https://youtrack.jetbrains.com/issues/KT, didn’t find any bug-report channel

Just because I am curious, you're trying to run a main function on your local machine. The main function is placed inside

androidMain

wich is a source set for an Android target, right?

@Sebastian Sellmair [JB] I wanted to make it 100% clear so I decided to record short video showing steps to reproduce this problem (you can skip from 0:20 to 1:20). As you can see on the vide, I’m creating a new Library project in IntelliJ, I’m adding

main

function in the

jvmMain

module, I’m trying to run it and I’m getting an error. Next I’m commenting-out android-related stuff in

build.gradle

and trying to run main function again and now it works

Any updates about this? I’m facing the same problem now 😬

I reported this here: https://youtrack.jetbrains.com/issue/KT-42486 And then it was merged with this one: https://youtrack.jetbrains.com/issue/KT-35890 (seems like a general problem with coexistence of Android and JVM targets in one project) I’m still using a workaround to comment-out Android specific stuff

Noice!! I also saw on the 35890 ticket that if you add the

-cp $Classpath$

to the vmoptions it works too 🙂

Good catch, thanks. I will test it later 🙂

If you want to take a look, I commited that on my repo (https://github.com/faogustavo/kached/commit/273222178fd69341df00870c2ebfd0e60cc65913). Just look for the

demo/gson-memory-demo/build.gradle.kts

file

Thank you! 🙂