Plugin [id: 'org.jetbrains.kotlinx.schema.ksp', version: '0.0.1'] was not found

[Polyana-Fontes]

build.gradle.kts:

plugins {
    alias(libs.plugins.kotlin.jvm)
    alias(libs.plugins.kotlin.plugin.serialization)
    alias(libs.plugins.ktor)
    id("org.jetbrains.kotlinx.schema.ksp") version "0.0.1"
}
//...

I tried to add this to settings.gradle.kts too:

pluginManagement {
    repositories {
        google()
        mavenCentral()
        gradlePluginPortal()
    }
}

But it keeps failing:

* What went wrong:
Plugin [id: 'org.jetbrains.kotlinx.schema.ksp', version: '0.0.1'] was not found in any of the following sources:

- Gradle Core Plugins (plugin is not in 'org.gradle' namespace)
- Included Builds (No included builds contain this plugin)
- Plugin Repositories (could not resolve plugin artifact 'org.jetbrains.kotlinx.schema.ksp:org.jetbrains.kotlinx.schema.ksp.gradle.plugin:0.0.1')
  Searched in the following repositories:
    Google
    MavenRepo
    Gradle Central Plugin Repository

[kpavlov]

That's known issue. The KSP plugin 0.0.1 wasn't published. You may try the Google KSP plugin with KSP processor, example:
https://github.com/Kotlin/kotlinx-schema/tree/main/examples/ksp-gradle

[kpavlov]

@Polyana-Fontes, The plugin is not yet published to the Gradle Plugin Portal, but as a workaround, you can resolve the plugin in settings.gradle.kts:

pluginManagement {
    repositories {
        google()
        mavenCentral()
        gradlePluginPortal()
    }

    resolutionStrategy {
        eachPlugin {
            if (requested.id.id == "org.jetbrains.kotlinx.schema.ksp") {
                useModule("org.jetbrains.kotlinx:kotlinx-schema-ksp-gradle-plugin:0.0.4")
            }
        }
    }
}

Example project