after update amper to 0.5.0, I'm having this Issue with KSP gradle plugin: ```> Task :konnection:...

# amper

[magnumrocha]

after update amper to 0.5.0, I'm having this Issue with KSP gradle plugin:

> Task :konnection:kspTestKotlinIosArm64 FAILED
e: -api-version (2.0) cannot be greater than -language-version (1.9)

My build.gradle.kts file is like this:

plugins {
    kotlin("multiplatform")
    id("com.google.devtools.ksp") version "2.0.21-1.0.26"
}

[joffrey]

In Amper 0.5.0, the default languageVersion for Kotlin was bumped to 2.0 (and by ricochet, the apiVersion too, because its default is the value of languageVersion).

The KSP Gradle plugin apparently doesn't support language version 2.0 in your case. You can override the value in your module.yaml to bring back the old behavior:

settings:
  kotlin:
    languageVersion: 1.9

(by default, the apiVersion will be the same as the languageVersion, so 1.9 too)

[magnumrocha]

got it, this change solved the Issue, thank you 👍

[joffrey]

Cool. And thanks for bringing this up, I think I should put this in the breaking changes section

[joffrey]

I moved this issue to a new Breaking changes section in the release notes, so people don't miss it:
https://github.com/JetBrains/amper/releases/tag/v0.5.0

Thanks again for the feedback / question!