Cannot execute app release with Proguard 7.4.2

[mahozad]

Describe the bug When trying to execute runReleaseDistributable, app fails with this error:

Exception in thread "main" java.lang.VerifyError: Bad return type
Exception Details:
  Location:
    androidx/compose/runtime/SnapshotStateKt__DerivedStateKt.derivedStateOf$102ee4b4(Landroidx/compose/runtime/SnapshotMutationPolicy;Lkotlin/jvm/functions/Function0;)Landroidx/compose/runtime/DerivedSnapshotState; @24: areturn
  Reason:
    Type 'androidx/compose/runtime/State' (current frame, stack[0]) is not assignable to 'androidx/compose/runtime/DerivedSnapshotState' (from method signature)
  Current Frame:
    bci: @24
    flags: { }
    locals: { 'androidx/compose/runtime/SnapshotMutationPolicy', 'kotlin/jvm/functions/Function0' }
    stack: { 'androidx/compose/runtime/State' }
  Bytecode:
    0000000: 2a12 07b8 0017 2b12 06b8 0017 bb00 0859
    0000010: 2b2a b700 12c0 000c b0                 

    at androidx.compose.runtime.ComposerImpl.doCompose(Composer.kt:50241)
    at androidx.compose.runtime.ComposerImpl.composeContent$runtime(Composer.kt:3236)
    at androidx.compose.runtime.CompositionImpl.composeContent(Composition.kt:725)
    at androidx.compose.runtime.Recomposer.composeInitial$runtime(Recomposer.kt:1071)
    at androidx.compose.runtime.CompositionImpl.composeInitial(Composition.kt:633)
    at androidx.compose.runtime.CompositionImpl.setContent(Composition.kt:619)
    at androidx.compose.ui.window.Application_desktopKt$awaitApplication$2$1$2.invokeSuspend(Application.desktop.kt:219)
    at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
    at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:104)
    at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
    at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
    at java.base/java.security.AccessController.doPrivileged(Unknown Source)
    at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
    at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

Affected platforms Select one of the platforms below:

• Desktop

Versions

• Kotlin version*: 1.9.20 and 1.9.22
• Compose Multiplatform version*: 1.5.10 and 1.5.12 and 1.6.0
• OS version(s)* (required for Desktop and iOS issues): Windows 11
• OS architecture (x86 or arm64): x86
• JDK (for desktop issues): Oracle OpenJDK 21

Expected behavior The app should run when executing runReleaseDistributable.

[mahozad]

For a workaround, I added this line to my rules.pro file:

-dontoptimize

[EchoEllet]

Do you use Material 3 or 2? Did you try with the default libraries included with the template without changing or including third-party libraries? Because Material 3 is not supported yet.

[EchoEllet]

Another workaround without disabling Proguard optimizations:

-keep class androidx.compose.runtime.** { *; }
-keep class kotlinx.coroutines.** { *; }

This will exclude Kotlinx coroutines from minimization, the bundle size will be 29.4 MB for the example desktop app on macOS Apple silicon JAR file, previously 28.3 MB with the runtime error

Tested with Compose 1.6.10, Proguard 7.5.0, and Kotlin 2.0.0 with a project created by kmp.jetbrains.com

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.

[okushnikov]

Please check the following ticket on YouTrack for follow-ups to this issue. GitHub issues will be closed in the coming weeks.

[mahozad]

EchoEllet I'm using Material 2. Thanks for the tip.

[EchoEllet]

EchoEllet I'm using Material 2. Thanks for the tip.

I was able to use it with Proguard 7.5.0, Kotlin 2.0.0 and Material 3 with this workarorund