Issue "androidx.core:core:1.16.0 requires AGP 8.6.0 or higher"

[arifrgilang]

I encountered this issue when integrating to my Android project.
co.elastic.otel.android.agent:co.elastic.otel.android.agent.gradle.plugin:1.1.0

4 issues were found when checking AAR metadata:

  1.  Dependency 'androidx.core:core:1.16.0' requires libraries and applications that
      depend on it to compile against version 35 or later of the
      Android APIs.

      :app is currently compiled against android-34.

      Also, the maximum recommended compile SDK version for Android Gradle
      plugin 8.3.2 is 34.

      Recommended action: Update this project's version of the Android Gradle
      plugin to one that supports 35, then update this project to use
      compileSdk of at least 35.

      Note that updating a library or application's compileSdk (which
      allows newer APIs to be used) can be done separately from updating
      targetSdk (which opts the app in to new runtime behavior) and
      minSdk (which determines which devices the app can be installed
      on).

  2.  Dependency 'androidx.core:core:1.16.0' requires Android Gradle plugin 8.6.0 or higher.

      This build currently uses Android Gradle plugin 8.3.2.

  3.  Dependency 'androidx.core:core-ktx:1.16.0' requires libraries and applications that
      depend on it to compile against version 35 or later of the
      Android APIs.

      :app is currently compiled against android-34.

      Also, the maximum recommended compile SDK version for Android Gradle
      plugin 8.3.2 is 34.

      Recommended action: Update this project's version of the Android Gradle
      plugin to one that supports 35, then update this project to use
      compileSdk of at least 35.

      Note that updating a library or application's compileSdk (which
      allows newer APIs to be used) can be done separately from updating
      targetSdk (which opts the app in to new runtime behavior) and
      minSdk (which determines which devices the app can be installed
      on).

  4.  Dependency 'androidx.core:core-ktx:1.16.0' requires Android Gradle plugin 8.6.0 or higher.

      This build currently uses Android Gradle plugin 8.3.2.

The documentation says Android Gradle plugin min 7.4.0, but it doesn't align with the error message number 2. Is the documentation not updated or is this something else?

Also does apm-agent-android requires targetSdk/compileSdk 35 too?

My setup:
Android Studio Koala
AGP: 8.3.2
Gradle: 8.7
compileSdk 34
minSdk 22
targetSdk 34
JDK 17

Thanks

[LikeTheSalad]

Hi @arifrgilang

The 7.4.0 min requirement is based on the agent's functionality; however, it unfortunately doesn't take into account its dependencies' requirements. We want to ensure that any bugs and security issues coming from our dependencies are sorted asap, which is why we keep our dependencies updated. However, since some Android libs keep bumping their compileSdk version values, which in turn raises the min requirement for the host app, it seems like showing a min AGP version requirement in our docs is more confusing than it is helpful. So we're going to work on addressing this issue in the docs.

Thank you for letting us know about this issue.

[arifrgilang]

Thanks for the confirmation. Now it's clear what to adjust in my project to be able to use this plugin

[arifrgilang]

I upgraded my project into using AGP 8.6 and targetSdk 35, and then got this error.
My project also still use jetifier right now.
Kotlin 1.8.22

e: file:///Users/xxx/.gradle/caches/transforms-4/5e6078fc7120406740df7cc3dc06d107/transformed/jetified-api-1.1.0-api.jar!/META-INF/api_release.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.8.0.
e: file:///Users/xxx/.gradle/caches/transforms-4/8e677b456e7a4fde2126ac300a678c7b/transformed/jetified-agent-api-1.1.0.jar!/META-INF/agent-api.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.8.0.
e: file:///Users/xxx/.gradle/caches/transforms-4/efa9bd2ff43a0fd494686d4921e97c26/transformed/jetified-agent-sdk-1.1.0-api.jar!/META-INF/agent-sdk_release.kotlin_moduleModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.1.0, expected version is 1.8.0.

Does this mean apm-agent-android also requires android project to use Kotlin 2.0 or later? @LikeTheSalad

[LikeTheSalad]

Does this mean apm-agent-android also requires android project to use Kotlin 2.0 or later? @LikeTheSalad

This is a good catch. Yes, right now that's the case, although we can provide compatibility with version 1.9.0 as a minimum, which should be compatible with the version you're using. I'll create a PR for it. Do bear in mind, though, that some of our dependencies can still provide this same Kotlin compatibility issue in case they don't add the min API and language compatibility version params. I think this is the case for okio, which is brought by okhttp for the agent. We've created this issue on it in the past if you'd like to get more details.

It should be addressed here: #579

[arifrgilang]

Does this mean apm-agent-android also requires android project to use Kotlin 2.0 or later? @LikeTheSalad

This is a good catch. Yes, right now that's the case, although we can provide compatibility with version 1.9.0 as a minimum, which should be compatible with the version you're using. I'll create a PR for it. Do bear in mind, though, that some of our dependencies can still provide this same Kotlin compatibility issue in case they don't add the min API and language compatibility version params. I think this is the case for okio, which is brought by okhttp for the agent. We've created this issue on it in the past if you'd like to get more details.

It should be addressed here: #579

Thanks a lot, that would be very helpful.
I will try the changes later on to check whether there's another Kotlin compatibility issue or not.