Could not determine the dependencies of task ‘:sonar’. Could not create task ‘:app:sonarResolver’. Extension of type ‘AppExtension’ does not exist. Currently registered extension types: [ExtraPropertiesExtension, SonarExtension, SonarExtension, VersionCatalogsExtension, BasePluginExtension, Sourc…

This has really high priority since this blocks basically all Android projects from properly updating to AGP 9.0. There is also no workaround inside sonar, since isSkipProject=true does not prevent the configurationAction of the SonarResolverTask: sonar-scanner-gradle/src/main/java/org/sonarqube/gra…

Hi, This is flagged for the team. Ann

Hey @michael-winkler and @G00fY2 , Thank you for the heads up, we have had the support AGP 9 in the backlog for a while and we have re-prioritized it to tackle it in the coming days as discussed in this post .

@G00fY2 I was able to reproduce the issue discussed above when invoking the sonar task but not a configuration time. Would you mind sharing how you add the plugin to your configuration?

@Dorian_Burihabwa I also do not see the error message posted in the initial post. Our error message looks like this: + ./gradlew sonar --no-parallel Calculating task graph as no cached configuration is available for tasks: sonar > Task :build-logic:checkKotlinGradlePluginConfigurationErrors SKIPPED…

[image] G00fY2: > Extension of type ‘AppExtension’ does not exist. Your error message is different but the solution for this is the same. [image] michael-winkler: Now when I use following inside my gradle.properties: android.newDsl=false and change in my build.gradle.kts android { to …

[image] Michael Winkler: Your error message is different but the solution for this is the same. This is not an sonar specific “solution” it’s a workaround to opt-out of the new AGP 9 DSL completely. This flag is well documented and it can be temporary used until all plugins are migrated. But…

Hi everyone, We have released a new version of the Sonar scanner for Gradle now with support for Android Gradle Plugin 9.

Sonar Gradle Plugin crashes on AGP 9: 'AppExtension' does not exist for :app:sonarResolver task

SonarQube Server / Community Build

michael-winkler (Michael Winkler) February 2, 2026, 12:40pm 12

I completely agree with you. I only meant this as a temporary solution until we no longer need android.newDsl=false to build the app.

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Sonar Gradle Plugin crashes on AGP 9: 'AppExtension' does not exist for :app:sonarResolver task

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