Android的工作室| Libgdx |添加Kryonet图书馆 - 的NoClassDefFoundError

问题描述

我目前的工作在Android游戏，要实现多人。
所以我想用Kryonet：

I am currently working on an Android game and want to implement multiplayer.So i wanted to use Kryonet:

• 我下载了库（ ）


• 我的核心模块中创建一个libs文件夹


• 复制kryonet-2.21-all.jar在进入它



• 并将其添加为模块中的build.gradle：

• I downloaded the library (https://github.com/EsotericSoftware/kryonet/releases)
• created a libs folder in my core module
• copied the kryonet-2.21-all.jar into it

• and added it as Module in the build.gradle:

dependencies {
 compile files('src/libs/kryonet-2.21-all.jar')  }

在Android Studio中它似乎工作，我曾访问所有的进口等，但我的设备上运行的应用程序时..它坠毁

In Android Studio it seemed to work, i had access to all imports etc., but when running the app on my device.. it crashed

07-16 00:00:44.419  12176-12196/com.cookedapps.robotredemption.android E/AndroidRuntime﹕ FATAL EXCEPTION: GLThread 3363
Process: com.cookedapps.robotredemption.android, PID: 12176
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/esotericsoftware/kryonet/Server;
        at com.cookedapps.robotredemption.server.GameServer.<init>(GameServer.java:20)
        at com.cookedapps.robotredemption.states.Play.<init>(Play.java:73)
        at com.cookedapps.robotredemption.handlers.GameStateManager.getState(GameStateManager.java:39)
        at com.cookedapps.robotredemption.handlers.GameStateManager.pushState(GameStateManager.java:49)
        at com.cookedapps.robotredemption.handlers.GameStateManager.<init>(GameStateManager.java:21)
        at com.cookedapps.robotredemption.main.Game.create(Game.java:41)
        at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:241)
        at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
        at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
 Caused by: java.lang.ClassNotFoundException: Didn't find class "com.esotericsoftware.kryonet.Server" on path: DexPathList[[zip file "/data/app/com.cookedapps.robotredemption.android-2/base.apk"],nativeLibraryDirectories=[/data/app/com.cookedapps.robotredemption.android-2/lib/arm, /vendor/lib, /system/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
        at com.cookedapps.robotredemption.server.GameServer.<init>(GameServer.java:20)
        at com.cookedapps.robotredemption.states.Play.<init>(Play.java:73)
        at com.cookedapps.robotredemption.handlers.GameStateManager.getState(GameStateManager.java:39)
        at com.cookedapps.robotredemption.handlers.GameStateManager.pushState(GameStateManager.java:49)
        at com.cookedapps.robotredemption.handlers.GameStateManager.<init>(GameStateManager.java:21)
        at com.cookedapps.robotredemption.main.Game.create(Game.java:41)
        at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:241)
        at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1520)
        at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1248)
Suppressed: java.lang.ClassNotFoundException: com.esotericsoftware.kryonet.Server
        at java.lang.Class.classForName(Native Method)
        at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
        at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
        ... 10 more
 Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

我试过/在cmd中和其他的东西gradlew干净，但没有任何帮助。
请给我一个提示IM自从有了这个几个小时被困。谢谢！

I tried /gradlew clean in cmd and other stuff, but nothing helped.Please give me a hint im stuck since a few hours with this.. Thank you!

推荐答案

我找到了解决办法。我做了一个错误的做法。
如何Kryonet添加到libgdx - Android项目：

I found a solution. I had a wrong approach.How to add Kryonet to a libgdx - Android project:

• 转到根的build.gradle


• 到项目（：核心） - 依赖并添加：

• Go to root build.gradle
• Go to project(":core") - dependencies and add:

编译com.esotericsoftware：KRYO：3.0.1
 编译（com.esotericsoftware：kryonet：2.22.0-RC1）{
      排除模块：'KRYO
 }

• 同步工程与摇篮文件

重要的一点是添加Kryonet，排除KRYO并分别加入KRYO 就像你能避免此异常：

The important point is to add Kryonet, exclude Kryo and adding Kryo separately. Like that you can avoid this exception:

UNEXPECTED TOP-LEVEL EXCEPTION: com.android.dex.DexException: Multiple dex files define

的我希望我能帮助别人这个！的

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