Hi everyone, I'm running in to a weird error when ...

# compose-desktop

[Ryan Smith]

Hi everyone, I'm running in to a weird error when running a release distributable of my application on Windows. I can reproduce it by using the runReleaseDistributable Gradle task, but everything seems to work with non-release. I have a suspicion there's some missing piece of Proguard configuration I need in order to keep the right parts of kotlinx-coroutines-swing, but I'm not sure what it is. Has anyone run in to this before?

[Ryan Smith]

Alternatively, maybe some extra piece of JPackage configuration is missing to make sure it includes all the parts of kotlinx-coroutines-swing I need?

[Dima Avdeev]

That Compose version are you trying?

[Ryan Smith]

1.3.1

[Ryan Smith]

Originally, 1.2.0 but I upgraded hoping that would help and still saw the same behavior

[Ryan Smith]

For reference I'm on Windows 11 also, but a colleague of mine who first reported this is on Windows 10 with the same behavior

[Dima Avdeev]

Can you please try to do the same with Compose 1.4.0 ?

[Ryan Smith]

I'll give it a shot and let you know!

[Ryan Smith]

Unfortunately, same result. Here are some (hopefully) relevant bits from my build file.

[Dima Avdeev]

Can you please create a minimal reproducible sample on GitHub ?

[Ryan Smith]

This reproduced the error for me: https://github.com/AvlWx2014/critical-delay

[Ryan Smith]

Using the runReleaseDistributable Gradle task specifically

[Dima Avdeev]

@alexey.tsvetkov Do you have Windows 10 or 11 to try this project?

[alexey.tsvetkov]

@Ryan Smith can you try adding a proguard rule?

compose.desktop {
    application {
        mainClass = "MainKt"
        nativeDistributions {
            // ...

            buildTypes.release.proguard {
                configurationFiles.from("<http://desktop-rules.pro|desktop-rules.pro>")
            }
        }
    }
}

// <http://desktop-rules.pro|desktop-rules.pro>
-keep class kotlinx.coroutines.swing.SwingDispatcherFactory {}

At least on my machine the exception has disappeared after adding that.

[Ryan Smith]

I will try this this evening and let you know!

[Ryan Smith]

This seems to fix it! Im going to try going backwards to Compose 1.3.1 and Java 15 and make sure it still works, though I am confident it will. Thank you both for your help

[Ryan Smith]

Confirmed to work on Compose 1.3.1 and Java 15. Thanks again!

[Kapil Yadav]

@Ryan Smith @alexey.tsvetkov where we can find progaurd for desktop compose

[Ryan Smith]

IIRC, at least for Compose 1.3.1 etc like I was using, proguard came with the project during setup. All I had to do was add a <http://desktop-rules.pro|desktop-rules.pro> file to my project and add buildTypes.release.proguard {} to my build file just like in Alexey's snippet above

[alexey.tsvetkov]

@Kapil Yadav https://github.com/JetBrains/compose-multiplatform/tree/master/tutorials/Native_distributions_and_local_execution#minification--obfuscation

[Kapil Yadav]

@alexey.tsvetkov @Ryan Smith my error is this after building dmg either release or debug

[Ryan Smith]

That looks like you're missing a dependency, try adding `kotlinx-coroutines-swing`:

dependencies {
                implementation(compose.desktop.currentOs)

                implementation(
                    "org.jetbrains.kotlinx:kotlinx-coroutines-core:${extra["kotlinx.coroutines.version"]}"
                )
                implementation(
                    "org.jetbrains.kotlinx:kotlinx-coroutines-swing:${extra["kotlinx.coroutines.version"]}"
                )
            }

[Kapil Yadav]

Thanks my man

[Kapil Yadav]

I'm a little bit confused about which dependency we need to keep under desktop gradle and which one under common gradle desktop section
@Ryan Smith @alexey.tsvetkov can you clear it ?

[Ryan Smith]

I think you would keep coroutines-core under "common" and then add -swing, -android, etc in your platform-specific config

[Kapil Yadav]

ALREADY SOLVED IT BRO, THANKS

[Ryan Smith]

Excellent 👍