如何将“com.unity3d.player.UnityPlayer”导入我的 Android 库？

问题描述 投票：0回答：6

我在将 

UnityPlayer
依赖项添加到我的 Unity Android 库插件中时遇到问题。

我只是想不出向我的插件添加依赖项的正确方法。

在我尝试将 

classes.jar
文件添加到包含所有 UnityPlayer 代码的 
libs
目录之前，这让我可以编写没有智能感知错误的代码，但是当我构建并运行时，我得到了这个大量产出。

CommandInvokationFailure: Gradle build failed. 
C:\Program Files\Unity\Hub\Editor\2018.4.14f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\OpenJDK\Windows\bin\java.exe -classpath "C:\Program Files\Unity\Hub\Editor\2018.4.14f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-5.1.1.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"

stderr[

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':checkReleaseDuplicateClasses'.
> 1 exception was raised by workers:
  java.lang.RuntimeException: Duplicate class bitter.jnibridge.JNIBridge found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class bitter.jnibridge.JNIBridge$a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.NativeLoader found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.ReflectionHelper found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.ReflectionHelper$1 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.ReflectionHelper$a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$1 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$10 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$11 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$12 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$13 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$14 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$15 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$16 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$17 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$18 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$19 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$2 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$3 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$4 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$5 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$6 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$7 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$8 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$9 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$b found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayer$c found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.UnityPlayerActivity found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.a$1 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.a$2 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.a$a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.b found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.c found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.d found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.e found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.f found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.g found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.h found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.i found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.j found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.k found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.k$1 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.l found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.m found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.n found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.o found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.p found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.q found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.q$1 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.q$2 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class com.unity3d.player.q$3 found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class org.fmod.FMODAudioDevice found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)
  Duplicate class org.fmod.a found in modules classes-2.jar (:coffeeplugin-release:) and unity-classes.jar (unity-classes.jar)

  Go to the documentation to learn how to <a href="d.android.com/r/tools/classpath-sync-errors">Fix dependency resolution errors</a>.


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 8s
]
stdout[
> Task :preBuild UP-TO-DATE
> Task :preReleaseBuild UP-TO-DATE
> Task :compileReleaseAidl NO-SOURCE
> Task :compileReleaseRenderscript NO-SOURCE
> Task :checkReleaseManifest UP-TO-DATE
> Task :generateReleaseBuildConfig UP-TO-DATE
> Task :prepareLintJar UP-TO-DATE
> Task :generateReleaseSources UP-TO-DATE
> Task :javaPreCompileRelease
> Task :mainApkListPersistenceRelease UP-TO-DATE
> Task :generateReleaseResValues UP-TO-DATE
> Task :generateReleaseResources UP-TO-DATE
> Task :mergeReleaseResources UP-TO-DATE
> Task :createReleaseCompatibleScreenManifests UP-TO-DATE
> Task :processReleaseManifest
> Task :processReleaseResources
> Task :compileReleaseJavaWithJavac
> Task :compileReleaseSources
> Task :lintVitalRelease
> Task :mergeReleaseShaders UP-TO-DATE
> Task :compileReleaseShaders UP-TO-DATE
> Task :generateReleaseAssets UP-TO-DATE
> Task :mergeReleaseAssets
> Task :validateSigningRelease UP-TO-DATE
> Task :signingConfigWriterRelease UP-TO-DATE
> Task :checkReleaseDuplicateClasses FAILED

Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.1.1/userguide/command_line_interface.html#sec:command_line_warnings
19 actionable tasks: 7 executed, 12 up-to-date
]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <f92457847c324e90907abe57dde6951d>:0)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <f92457847c324e90907abe57dde6951d>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr) (at C:/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:179)

我看到的大部分都是重复的错误，所以我猜我已经在我的 Android Studio 项目中的 

classes.jar
中拥有了所有内容。我从 Unity 导出的项目构建了该项目，并在 Android Studio 中打开它，然后制作了 
"coffeeplugin"
模块。

当我尝试在 Gradle 构建脚本中添加 

com.unity3d.player.UnityPlayer
时，Android Studio 在同步 Gradle 时告诉我它是一个无效字符串。

我知道它想要

:SomeTag
我猜，但我不知道该放什么。 Unity 文档 并没有真正涉及这部分（至少从我能找到的文档和博客中）。

coffeeplugin build.gradle

apply plugin: 'com.android.library'

android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"


    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        consumerProguardFiles 'consumer-rules.pro'
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'com.unity3d.player'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
}

task copyPlugin(type: Copy) {
    dependsOn assemble
    from ('build/output/aar')
    into ('N:/Storage/UnityProjects/Coffee/Assets/Plugins/Android')
    include (project.name + "-release.aar")
}
android android-studio unity-game-engine gradle jar
6个回答
7
投票

将 

implementation
更改为 
compileOnly
以获得 
'com.unity3d.player'
。这允许在编译时使用Unity播放器classes.jar，但不能在运行时使用，这会导致重复。

5
投票

我准确地弄清楚了我导入到 Unity 的这些 AAR 文件中包含的内容。 我一直在做正确的事情，将 Unity 中的 

classes.jar
包含到我的 
plugin/libs
中。问题是，通过在 Android Studio 中使用 
classes.jar
中的 
libs
构建我的插件，
classes.jar
被包含在最终的 AAR 输出中，这在 Unity 方面是多余的，因为 Unity 已经拥有此数据，因此我遇到了重复的类错误。

修复方法是打开 AAR 某个存档编辑器（7-zip 或 winrar）并仅提取其中的 

clases.jar
并仅将其导入到 Unity 中。

我很惊讶没有更多关于此过程的官方文档。

此外，此修复意味着无需对 Gradle 构建脚本进行编辑，除非您想要自动执行从中间构建到 Unity 的复制过程。

1
投票

我所做的是将 Unity Jar [classes.jar] 重命名为 [clases.jar]

并在 Gradle 文件中添加了以下内容

如果仍然出现错误，则： 转到文件>>设置

0
投票

在 libs 文件夹中从 unity 添加classes.jar 文件后打开 Unity 播放器类为我解决了这个问题。

0
投票

在 build.gradle 中添加行 --> 实现 fileTree(dir: 'libs', include: ['*.jar'])。 并将你的 unity.jar 移至 lib 文件夹。

0
投票

我目前在基于 kotlin 的解决方案中遇到了同样的问题。 导入classes.jar后 /Applications/Unity/Hub/Editor/{place_your_version}/PlaybackEngines/AndroidPlayer/Variations/il2cpp/Development/Classes

我添加了 gradle 指令：

implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar"))))
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