When upgrading the Kotlin version to 1.7.20-RC from 1.7.10 the following error is thrown on a Gradle...

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[Thomas]

When upgrading the Kotlin version to 1.7.20-RC from 1.7.10 the following error is thrown on a Gradle sync. How can I figure out what is going wrong here?

Untitled.txt

[Alexey Belkov [JB]]

Looks like https://youtrack.jetbrains.com/issue/KT-53912/1720-Beta-with-Gradle-80-Nightly-fails-to-build-when-project-contains-buildSrc-defining-Kotlin-version

Which Gradle version do you use?

[Thomas]

I’m using Gradle version 7.5.1. Thanks for linking the issue, it does seem familiar but I do not use buildSrc. However, I do use includeBuild with plugins for shared build logic.

[Alexey Belkov [JB]]

It may be a different issue, though related. If possible, please create a youtrack issue with a sample project to reproduce the error.

[tapchicoma]

Required by:
            project : > org.jetbrains.kotlinx:atomicfu-gradle-plugin:0.18.3 > org.jetbrains.kotlin:atomicfu:1.7.0

I would suggest first to update kotlin-atomicfu plugin

[tapchicoma]

hm, seems you have the latest version 0.18.3 that has fix for KGP 1.7.20. Then, yes, please open a new issue with repro project

[Thomas]

Alright, thank you for the information. I will investigate further.

[Thomas]

And yes, I am using atomicfu 0.18.3

[Thomas]

Removing atomicfu plugin seems to fix the gradle sync. But ofcourse it’s required to build the project.

[Thomas]

Found a workaround.
Replacing the following:

classpath("org.jetbrains.kotlinx:atomicfu-gradle-plugin:0.18.3")

with

classpath("org.jetbrains.kotlinx:atomicfu-gradle-plugin:0.18.3") {
    exclude("org.jetbrains.kotlin", "kotlin-gradle-plugin-api")
}

fixes the issue. My project syncs, builds, and runs correctly now.