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!

Project: r8
Branch: main
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102626

Fix usage of Immutable list in resource shrinker

Fix usage of Immutable list in resource shrinker 
 
The returned list is mutable unless it is empty, allways create a copy. 
 
Bug: b/401546693 
Change-Id: I9ea50d23c365ea59e1f6ae5e13a02048daa8b5f8

Project: r8
Branch: 8.9
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102641

Add reproduction of adding to immutable list in resource shrinker

Add reproduction of adding to immutable list in resource shrinker 
 
This happens if the list returned from the model is empty, in which case it is immutable 
 
Bug: b/401546693 
Change-Id: Ib596242df6e3299f19ff00a03dbe43bde79e13c0

Project: r8
Branch: 8.9
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102664

Fix usage of Immutable list in resource shrinker

Fix usage of Immutable list in resource shrinker 
 
The returned list is mutable unless it is empty, allways create a copy. 
 
Bug: b/401546693 
Change-Id: I9ea50d23c365ea59e1f6ae5e13a02048daa8b5f8

Project: r8
Branch: 8.9
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102642

Version 8.9.32

Version 8.9.32 
 
Bug: b/401546693 
Change-Id: Ibed0928d2ac5c2b649516ce2a4918ad04da0b0e7

As a follow up to the last comment, you can try version 8.9.32 with the instructions from here:

https://r8.googlesource.com/r8/+/refs/heads/main#replacing-r8-in-agp

That should make the compilation succeed

Project: r8
Branch: 8.10
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102663

Version 8.10.17

Version 8.10.17 
 
Bug: b/401546693 
Change-Id: I0f46c848db5653a9a7728f6f38ab305ac1dac80d

Project: r8
Branch: 8.10
Author: Rico Wind <ricow@google.com>
Link:      https://r8-review.googlesource.com/102661

Add reproduction of adding to immutable list in resource shrinker

Add reproduction of adding to immutable list in resource shrinker 
 
This happens if the list returned from the model is empty, in which case it is immutable 
 
Bug: b/401546693 
Change-Id: Ib596242df6e3299f19ff00a03dbe43bde79e13c0

Thank you for your patience while our engineering team worked to resolve this issue. A fix for this issue is now available in:

• Android Studio Meerkat Feature Drop | 2024.3.2 Beta 1
• Android Gradle Plugin 8.10.0-beta01

We encourage you to try the latest update.

If you notice further issues or have questions, please file a new bug report.

Thank you for taking the time to submit feedback — we really appreciate it!

The fixes for this issue are now also available in:

• Android Studio Meerkat | 2024.3.1 Patch 1
• Android Gradle Plugin 8.9.1

We encourage you to try the latest update.

If you notice further issues or have questions, please file a new bug report.

Thanks very much for the regular updates. I just tried it out and it works for me.

Comment #18 please file a separate bug.

This should be fixed in R8 4.0, 8.0, 8.1, and 8.2 now. It would be great if you could confirm if 8.1.39 works for you. Thanks.

I tested with 8.1.39 and it looks like it is fixed, thank you!

Any idea of what version of AGP this will ship with?

Good to hear! This should land in AGP 8.1 beta 2.