plugins

if (requested.id.id.startsWith("org.jetbrains.kotlin.platform")) {
                useModule("org.jetbrains.kotlin:kotlin-gradle-plugin:${requested.version}")
            }

fun PluginResolveDetails.register(id: String, module: String) {
    if (requested.id.id == id) {
        useModule("$module:${requested.version}")
    }
}

resolutionStrategy {
    eachPlugin {
        register("kotlinx-serialization", "org.jetbrains.kotlinx:kotlinx-gradle-serialization-plugin")
    }
}

Outdated Kotlin Runtime

Your version of Kotlin runtime in 'Gradle: org.jetbrains.kotlinkotlin stdlib1.1.61' library is 1.1.61-release-68 (1.1.61), while plugin version is 1.2.0-release-IJ2017.3-1.

Runtime library should be updated to avoid compatibility problems.

plugins {
    val kotlinVersion = "1.2.0"
    kotlin("jvm") version kotlinVersion
    kotlin("plugin.spring") version kotlinVersion
    id("io.spring.dependency-management") version "1.0.3.RELEASE"
}

dependencies {
    compile(kotlin("stdlib"))
    compile(kotlin("reflect"))
...
}

compile(kotlin("stdlib", "1.2.0"))

cant be called in this context by implicit receiver

kotlin.version=1.2

java

java-library

implementation()

compile()

val kotlinVersion: String? by extra {
    buildscript.configurations["classpath"]
            .resolvedConfiguration.firstLevelModuleDependencies
            // for gradle 4.4+ change "kotlin-gradle-plugin" to "org.jetbrains.kotlin.jvm.gradle.plugin"
            .find { it.moduleName == "org.jetbrains.kotlin.jvm.gradle.plugin" }?.moduleVersion

}

extra["kotlin.version"] = kotlinVersion
dependencies {
    compile(kotlin("stdlib-jdk8"))
    compile(kotlin("reflect"))
...
}