Android 14 AOSP Build Failure

[mo123]

I keep getting several of these errors when building with Android 14 AOSP like

packages/apps/Seedvault/core/src/main/java/org/calyxos/seedvault/core/backends/webdav/WebDavBackend.kt:9:27: error: class 'at.bitfire.dav4jvm.DavCollection' was compiled with an incompatible version of Kotlin. The binary version of its metadata is 2.0.0, expected version is 1.8.0.

How to fix the 'The binary version of its metadata is 2.0.0, expected version is 1.8.0.'?

[grote]

Are you sure you are building from the android14 branch?

[mo123]

Are you sure you are building from the android14 branch?

Yes
https://github.com/seedvault-app/seedvault/archive/refs/heads/android14.tar.gz

Only the Android 12 branch building with the Android 12 SDK builds successfully for me.

I also checked here but it seems there is only information for Android 13, the Android 14 info is missing and it doesn't use .gradle, it uses gradle.kts now.
https://github.com/seedvault-app/seedvault/wiki/Updating-SeedVault-for-new-Android-versions
I think only building through Android Studio might work but I'm using Android 14 SDK instead.

The problem seems to be with the webdav backend that uses Kotlin 2.0.0 binaries, aren't there any 1.8.0 files I can use and replace them with?

[grote]

Are you building with latest android 14 QPR branch? CalyxOS and LineageOS seem to be able to build just fine from that branch.

What is it what you are trying to do exactly? Just building the app? you may just use normal gradle builds for that.