After updating Gradle from 8 to 9, the plugin stopped working. I now get the error: Execution failed for task ‘:extensions:nunl:processReleaseResources’. Cannot mutate the dependencies of configuration ‘:extensions:nunl:releaseCompileClasspath’ after the configuration was resolved. After a config…

Solved it by using the new extension from AGP v9 instead of the now-deprecated one from AGP v8 (ApplicationExtension instead of BaseAppModuleExtension).

I did not review all your code, but if you get that error you mentioned, that is just the symptom. Something resolved the configuration you try to configure before you try to configure it. So you would need to find out / have a breakpoint when the configuration you try to modify is locked by being…

When I omit the call to configureConsumeExtensions, the symptom no longer occurs. I will try to use breakpoints to find the relevant lines. Maybe a stacktrace could show where the issue occurs? I don’t think a breakpoint would show which line causes the error, because the stack trace didn’t either

Yes, it would, if you have read what I wrote closely. :wink: The error happens because you try to add some dependency to a configuration that already took part in dependency resolution, which in Gradle 9 was made a hard error. But this error is usually just the symptom, which is also why the stack…

No, of course not in your plugin, you don’t know what causes the resolve, so that would be pointless. Find the condition in the Gradle code when the exception that is thrown is triggered. Find where this condition is turned to being true. Set a breakpoint there to see when the configuration is re…

Oh wait, your error says “Execution failed for task ‘:extensions:nunl:processReleaseResources’.”, so you are in the execution phase already. Forget what I said, it seems to not be the typical case but really your error. You should not change any configuration options at task execution time.

[image] Vampire: You should not change any configuration options at task execution time. How do I know which configuration I am changing at execution time? I have to share an artifact between modules which happens after one project built it. How do determine which part of the code in the plug…

To share an artifact, create an outgoing variant for it and depend on that variant from the other projects. You must not change the configuration at execution time for that.

As far as I am concerned, I do that. How do I know that I am not doing that and the error is actually caused by it? Note when I remove the call to consume the artifact, the error disappears, maybe thats an indicator From last time I checked the docs, it has changed a little. I’ll give replicating i…

I skimmed over your code now. As you said, there are some bad practices (doing cross-project configuration, doing cross-project mutable state reading, using configuration = instead of attributes to consume the artifact from the other project, requiring a specific plugin application order, using .pl…

Cannot apply plugins to subprojects from within a settings plugin

Help/Discuss

oSumAtrIX (Ohan Melkonyan) November 25, 2025, 9:25pm 6

Do I set the breakpoints anywhere in my Gradle plugin? How do I know whether the configuration resolves at the breakpoint? Is there one configuration or multiple? How do I see the configuration and if it is resolved? Is there an API to get the configuration when I break?

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Cannot apply plugins to subprojects from within a settings plugin

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