I'm working on migrating our app to AGP 9 with bui...

# android

[Maxr1998]

I'm working on migrating our app to AGP 9 with built-in Kotlin and I'm hitting a strange issue when trying to override the Kotlin version as recommended in the AGP docs (top-level build.gradle.kts, buildscript {} block with classpath entry) 🧵

[Maxr1998]

This is the exact error message I'm getting:

Calculating task graph as no cached configuration is available for tasks: assembleDebug

FAILURE: Build failed with an exception.

* Where:
Build file '/home/max/Development/Android/Launcher/app/build.gradle.kts' line: 9

* What went wrong:
An exception occurred applying plugin request [id: 'com.android.application', version: '9.0.1']
> Failed to apply plugin 'com.android.internal.application'.
   > Could not create an instance of type org.jetbrains.kotlin.gradle.plugin.mpp.KotlinAndroidTarget.
      > Could not generate a decorated class for type KotlinAndroidTarget.
         > com/android/build/gradle/api/BaseVariant

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights from a Build Scan (powered by Develocity).
> Get more help at <https://help.gradle.org|https://help.gradle.org>.

BUILD FAILED in 988ms
15 actionable tasks: 15 up-to-date
Configuration cache entry stored.

[Maxr1998]

At first, I thought it would come from one of our plugins, but it's actually the KGP that's still referencing the long-deprecated and since removed BaseVariant class.

[Maxr1998]

Did anyone else here already hit this issue in the past?

[Maxr1998]

Fwiw, I'm using AGP 9.0.1 specifically for now and am trying to apply KGP 2.2.20 or 2.3.20, neither of them works.

[Maxr1998]

Without the override, it builds fine, but then it uses 2.2.10 and I'd like to upgrade to 2.4.0 after the migration is complete.

[Maxr1998]

Hm, so moving the classpath declaration to the module level somehow fixes it. I suppose I'll use that for now.

[Vijay Hiremath]

Hey now only i searched and learned it using claude ai here is some screenshot I have attached look into it if it could solve the problem