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Plugin version is not the same as library version

Last updated at Posted at 2020-07-22

概要

kotlin-gradle-plugin を利用していると、プラグインとライブラリのバージョンが異なるという内容の警告が出ることがあります。

Gradle プラグインとライブラリのバージョンが同一である必要はありませんので、これは、誤検知です。

以下に、現象と対処法を示します。

現象

◆ 警告内容

Plugin version (プラグインのバージョン) is not the same as library version (ライブラリのバージョン) という内容の警告が表示されます。

例:
Plugin version (1.3.72) is not the same as library version (jdk8-1.3.72)
kotlin-warning.png

◆ 事例

以下は、実際に遭遇した事例です。

☆ Root project の build.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    ext.kotlin_version = "1.3.72"
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.0.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

☆ Sub project の build.gradle

apply plugin: 'java-library'
apply plugin: 'kotlin'

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
}

sourceCompatibility = "1.8"
targetCompatibility = "1.8"

☆ 警告表示

Plugin version (1.3.72) is not the same as library version (jdk8-1.3.72)
kotlin.png

対処方法

誤検知なので、対処する必要はありません。

警告の抑制は以下のように行うことができます。1

// https://youtrack.jetbrains.com/issue/KT-33248
// noinspection DifferentStdlibGradleVersion
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"

参考

https://youtrack.jetbrains.com/issue/KT-23744
https://youtrack.jetbrains.com/issue/KT-33248


  1. リンクのコメントは不要ですが、意図を残しておいたほうが保守者は幸せになれると思います。 

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