Hi, what does that means? > > Task :app:wear:minifyReleaseWithR8 FAILED > ERROR: R8: java.l...

# compose-wear

[florent]

Hi, what does that means?

> Task appwear:minifyReleaseWithR8 FAILED

ERROR: R8: java.lang.NullPointerException: Cannot invoke "com.android.tools.r8.graph.D0.C1()" because the return value of "com.android.tools.r8.graph.x.d(com.android.tools.r8.graph.H2)" is null

I am having it when doing release build with com.android.application at 8.4.0-alpha13, but it isn't happening with my mobile companion app. I have tried to Google it but I haven't found much relevant stuff

[yschimke]

File a bug against R8, but I guess they will want a repro or some logs.

[yschimke]

There are links for filing bugs https://r8.googlesource.com/r8/#getting-help

[yschimke]

Looking at recent issues, there have been issues with JVM target, or the JDK used for building (20 vs 17) and also issues fixed in latest desugar libs.

[florent]

like specific to wear? I have tried with the 8.3.0, it is working fine

[yschimke]

No. But I just meant it could be some incidental wear thing. Like it has a different dep that triggers a bug.

[florent]

well the only dependencies I have on wear are:

coreLibraryDesugaring "com.android.tools:desugar_jdk_libs:$core_lib_desugaring"

    api "androidx.wear.compose:compose-material:$wear_compose_version"
    api "androidx.wear.compose:compose-foundation:$wear_compose_version"

    implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlin_serialization"

    implementation "androidx.wear:wear-ongoing:1.0.0"

    ksp "me.tatarka.inject:kotlin-inject-compiler-ksp:$kotlin_inject_version"

Then it is probably a bug on the wear-ongoing dep?

[florent]

nan I have removed it, same issue

[florent]

so I only see compose then

[yschimke]

I can't help you. I don't know why it's happening. You'll need to file an R8 bug.

[florent]

ok I will leave it like that for now, if someone has the same issue, they can find this conversation

[florent]

solved I had

sealed class Example {
   sealed class Test : Example() {
      data object Loading : Test()
   }
}

The sealed class aren't supported apparently, if you swap them to sealed interface it works well