IssueTracker

Retraced stack trace:

Caused by: java.lang.UnsupportedOperationException: Operation is not supported for read-only collection
	at com.android.tools.r8.jetbrains.kotlin.collections.EmptyList.removeAll(Collections.kt)
	at com.android.tools.r8.resourceshrinker.r8integration.LegacyResourceShrinker.run(LegacyResourceShrinker.java:228)
	at com.android.tools.r8.R8.shrinkResources(R8.java:991)
	at com.android.tools.r8.R8.runInternal(R8.java:894)
	at com.android.tools.r8.R8.runInternal(R8.java:259)
	at com.android.tools.r8.R8.lambda$runForTesting$1(R8.java:243)
	at com.android.tools.r8.internal.Nu.a(R8_8.9.27_3afcc9fea5cc5cd06373667ec09d5fe106db8a4a77576689534e667542385a93:28

This is happening when there are no unused resources at all and we have duplicated resources between the feature and base (or different features)

Reproduction here: https://r8-review.git.corp.google.com/c/r8/+/102418

Fix here: https://r8-review.git.corp.google.com/c/r8/+/102626

For the reporter to work around this:

• Disable resource shrinking in this case, it will have no effect since there are no unused resources for this build
• Use legacy AGP embedded shrinker - set android.r8.integratedResourceShrinking false in your settings
• Manually update to a new R8 version (I will post a follow up when this is on our release branch)

Thanks!