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【備忘録】UnityのAndroidビルドでAPI level 33にしてエラーが出た時はこれをやってみろ!

Last updated at Posted at 2024-04-12

はじめに

Google様の「今度からTargetAPILevelを〇〇以上にしてね。古いの使ってたらアプリリリースさせないから」に対応する際、役に立つかもしれない情報を書き留めておく。

環境

OS: macOS Ventura 13.0
CPU: M1
Unity: 2021.3.0f1 (2020.3.41f1でも確認済み)

やったこと

  • ProjectSettings > Player > Other Settings for Android にある「Target API level」を 33 に変更
    スクリーンショット 2024-01-19 1.41.22.png
  • /Applications/Unity/Hub/Editor/2021.3.0f1/PlaybackEngines/AndroidPlayer/SDK/platforms内に、他のエディタ等から引っ張ってきたSDK(android-33)をディレクトリごとコピー
    (SDKがどこにもない場合は、AndroidStudioなどを利用してDLできる)
  • ビルド

エラー

java.io.IOException: Can't read [/Applications/Unity/Hub/Editor/2021.3.0f1/PlaybackEngines/AndroidPlayer/SDK/platforms/android-33/optional/android.car.jar] (Can't process class [android/car/Car$CarServiceLifecycleListener.class] (Unsupported version number [55.0] (maximum 54.0, Java 10))) See the Console for details.
> Configure project :launcher
WARNING: The option setting 'android.enableR8=false' is deprecated.
It will be removed in version 5.0 of the Android Gradle plugin.
You will no longer be able to disable R8

他にも、gradleが読み込めないみたいなことを言われるかもしれない

解決方法

  • ProjectSettings > Player > Publishing Settings for Android にある「Custom Launcher Gradle Template」と「Custom Base Gradle Template」にチェックを入れる
    スクリーンショット 2024-01-19 2.03.23.png

  • Assets/Plugin/Android 内に生成されたlauncherTemplate.gradlebaseProjectTemplate.gradleをそれぞれ次のように書き換える

launcherTemplate.gradle
apply plugin: 'com.android.application'

dependencies {
    implementation project(':unityLibrary')
    }

android {
    compileSdkVersion **APIVERSION**
    buildToolsVersion '**BUILDTOOLS**'

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    defaultConfig {
        minSdkVersion **MINSDKVERSION**
        targetSdkVersion **TARGETSDKVERSION**
        applicationId '**APPLICATIONID**'
        ndk {
            abiFilters **ABIFILTERS**
        }
        versionCode **VERSIONCODE**
        versionName '**VERSIONNAME**'
    }

+    packagingOptions {
+        exclude "META-INF/kotlinx_coroutines_core.version"
+    }

    aaptOptions {
        noCompress = **BUILTIN_NOCOMPRESS** + unityStreamingAssets.tokenize(', ')
        ignoreAssetsPattern = "!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~"
    }**SIGN**

    lintOptions {
        abortOnError false
    }

    buildTypes {
        debug {
            minifyEnabled **MINIFY_DEBUG**
            proguardFiles getDefaultProguardFile('proguard-android.txt')**SIGNCONFIG**
            jniDebuggable true
        }
        release {
            minifyEnabled **MINIFY_RELEASE**
            proguardFiles getDefaultProguardFile('proguard-android.txt')**SIGNCONFIG**
        }
    }**PACKAGING_OPTIONS****PLAY_ASSET_PACKS****SPLITS**
**BUILT_APK_LOCATION**
    bundle {
        language {
            enableSplit = false
        }
        density {
            enableSplit = false
        }
        abi {
            enableSplit = true
        }
    }
}**SPLITS_VERSION_CODE****LAUNCHER_SOURCE_BUILD_SETUP**
baseProjectTemplate.gradle
allprojects {
    buildscript {
        repositories {**ARTIFACTORYREPOSITORY**
            google()
-            jcenter()
+            mavenCentral()
        }

        dependencies {
            // If you are changing the Android Gradle Plugin version, make sure it is compatible with the Gradle version preinstalled with Unity
            // See which Gradle version is preinstalled with Unity here https://docs.unity3d.com/Manual/android-gradle-overview.html
            // See official Gradle and Android Gradle Plugin compatibility table here https://developer.android.com/studio/releases/gradle-plugin#updating-gradle
            // To specify a custom Gradle version in Unity, go do "Preferences > External Tools", uncheck "Gradle Installed with Unity (recommended)" and specify a path to a custom Gradle version
-            classpath 'com.android.tools.build:gradle:4.0.1'
+            classpath 'com.android.tools.build:gradle:4.2.2'
+            classpath 'com.guardsquare:proguard-gradle:7.1.0'
            **BUILD_SCRIPT_DEPS**
        }
    }

    repositories {**ARTIFACTORYREPOSITORY**
        google()
-        jcenter()
+        mavenCentral()
        flatDir {
            dirs "${project(':unityLibrary').projectDir}/libs"
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}
  • Gradle6.7.1をこちらからダウンロードし、適切な場所に配置した後、Preferences > External Tools 内の「Gradle Installed with Unity (recommended)」のチェックを外してパスを設定する
    • 例:/Applications/Unity/Hub/Editor/2021.3.0f1/PlaybackEngines/AndroidPlayer/Tools/gradle/gradle-6.7.1
      スクリーンショット 2024-01-19 2.27.14.png

再ビルド!

上記の設定が終わったら、もう一度ビルドしてみる。
エラーなく完了したら成功。

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