没有找到类＆QUOT; android.support.multidex.MultiDexApplication＆QUOT;在路径：DexPathList

问题描述

我想新的 MultiDex支持我的应用到目前为止我已经成功地正确编译我的应用程序，但在运行时，我得到了以下异常：

I'm trying the new MultiDex Support on my app and so far I've managed to compile my app correctly, but when running it, I get the following exception:

java.lang.RuntimeException: Unable to instantiate application android.support.multidex.MultiDexApplication: java.lang.ClassNotFoundException: Didn't find class "android.support.multidex.MultiDexApplication" on path: DexPathList[[zip file "/data/app/me.myapp.main-2.apk"],nativeLibraryDirectories=[/data/app-lib/me..main-2, /vendor/lib, /system/lib]]
    at android.app.LoadedApk.makeApplication(LoadedApk.java:507)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4382)
    at android.app.ActivityThread.access$1500(ActivityThread.java:139)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1270)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5086)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
    at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.multidex.MultiDexApplication" on path: DexPathList[[zip file "/data/app/me.myapp.main-2.apk"],nativeLibraryDirectories=[/data/app-lib/me.myapp.main-2, /vendor/lib, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
    at android.app.Instrumentation.newApplication(Instrumentation.java:998)
    at android.app.LoadedApk.makeApplication(LoadedApk.java:502)

这是我的摇篮文件：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.0"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 21
        multiDexEnabled true
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
        debug {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
    packagingOptions {
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
    }
}

repositories {
    mavenCentral()
    mavenLocal()
}


dependencies {
    compile 'com.android.support:multidex:1.0.0'
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:support-v4:21.0.0'
    compile 'com.android.support:support-v13:21.0.0'
    compile 'com.android.support:appcompat-v7:21.0.0'
}

和我的Andr​​oidManifest.xml：

And my AndroidManifest.xml:

<application
android:name="android.support.multidex.MultiDexApplication">

我不明白是什么问题。我想我根据文档做的一切。有没有别的东西我失踪？我确信我已经从SDK管理器安装了最新的支持库和回购。

I don't understand what the problem is. I think I'm doing everything according to the documentation. Is there something else i am missing? I made sure I had the latest support library and repo installed from the SDK manager.

推荐答案

我的配置：

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.14.+' // 0.14.1, 2014-11-6
    }
}

dependencies {
    compile 'com.android.support:multidex:1.0.0'
}

android {
    compileSdkVersion = 21
    buildToolsVersion = "21.1.0"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 21
        multiDexEnabled true
    }
}

不幸的是，我有同样的问题。但是我发现一个奇怪的现象：

Unfortunately, I have the same problem. But I found a strange situation:

编译/中间体/ DEX /调试：

build/intermediates/dex/debug:

-rw-rw-r--  1 andrew andrew  2221176 Nov  6 20:18 classes2.dex
-rw-rw-r--  1 andrew andrew  8357596 Nov  6 20:18 classes.dex

解压缩APK，建立/输出/ APK：

unzip apk, build/outputs/apk:

-rw-rw-r-- 1 andrew andrew 8357596 Nov  6 20:18 classes2.dex
-rw-rw-r-- 1 andrew andrew 2221176 Nov  6 20:18 classes.dex

在APK，classes.dex的主要类别应大于classes2.dex，但它不是。我也dex2jar和放大器;解压缩罐检查类，应用程序类是不存在的classes.dex，其classes2.dex反之。

In apk, the main classes of classes.dex should be bigger than classes2.dex, but its not. I do also dex2jar & unzip jar to check classes, the application class is not there in classes.dex, its in classes2.dex contrarily.

不过，我应该有固定它。这是我的修补安卓摇篮插件，您可以试试：

However, I should have fixed it. Here is my patched android gradle plugin you can try:

buildscript {
    repositories {
        mavenCentral()
        maven { url 'https://github.com/yongjhih/android-gradle-plugin.m2/raw/master/' }
    }
    dependencies {
        classpath 'com.infstory.tools.build:gradle:0.14.+'
    }
}

该补丁是：https://github.com/yongjhih/android-gradle-plugin/commit/9c2212e3b1b4c6e1f7b47f2086aba1903a6258bf要么 https://android-review.googlesource.com/#/c/113331/

问题： https：//开头code。 google.com/p/android/issues/detail?id=78761

官方补丁 https://android-review.googlesource.com/# / C / 113201 / 已经被合并，我想这可能是固定的下一个版本。

The official patch is https://android-review.googlesource.com/#/c/113201/ that already been merged, I think it might be fixed in next version.

已经得到修复0.14.2（二零一四年十一月十日）。（从的）

Release notes:

0.14.2 (2014/11/10)

Fix potential multi-dex issue where the dex files could be renamed during packaging, leading to the wrong main dex file being used.
Fix versionNameSuffix support
Fix BuildType.initWith to copy shrinkResources flag
setup default proguard rule file if none are provided (SDK/tools/proguard/proguard-android.txt)
BuildType.pseudoLocalesEnabled flag to include fake locales in apk.

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