android：将字节转换为dex时出错

因此，从以下版本升级build.gradle（Project）后，运行项目时出现以下错误

dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha2'

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

至

dependencies {
        classpath 'com.android.tools.build:gradle:2.0.0-alpha3'

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

我只是将gradle从更改2.0.0-alpha2为2.0.0-alpha3，然后尝试构建该项目。

错误日志：

Information:Gradle tasks [:app:assembleDebug]
:app:incrementalDebugBuildInfoGenerator
:app:preBuild UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72311Library UP-TO-DATE
:app:prepareComAndroidSupportCardviewV72311Library UP-TO-DATE
:app:prepareComAndroidSupportCustomtabs2311Library UP-TO-DATE
:app:prepareComAndroidSupportDesign2311Library UP-TO-DATE
:app:prepareComAndroidSupportRecyclerviewV72311Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42311Library UP-TO-DATE
:app:prepareComDigitsSdkAndroidDigits192Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTweetComposer102Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTweetUi180Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTwitter1110Library UP-TO-DATE
:app:prepareComTwitterSdkAndroidTwitterCore162Library UP-TO-DATE
:app:prepareIoFabricSdkAndroidFabric1310Library UP-TO-DATE
:app:prepareDebugDependencies
:app:compileDebugAidl UP-TO-DATE
:app:compileDebugRenderscript UP-TO-DATE
:app:generateDebugBuildConfig UP-TO-DATE
:app:processDebugManifest UP-TO-DATE
:app:injectDebugBootstrap
Instrumented app with a fast deploy bootstrapping application
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets UP-TO-DATE
:app:fabricGenerateResourcesDebug
:app:generateDebugResValues UP-TO-DATE
:app:generateDebugResources
:app:mergeDebugResources
:app:processDebugResources
:app:generateDebugSources
:app:compileDebugJavaWithJavac UP-TO-DATE
:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources UP-TO-DATE
:app:fastDeployDebugExtractor
:app:generateDebugInstantRunAppInfo
:app:transformClassesWithExtractJarsForDebug
:app:transformClassesWithInstantRunVerifierForDebug
:app:transformClassesWithInstantRunForDebug
IncrementalSupportVisitor Visiting com/waysay/R$color
IncrementalSupportVisitor Visiting com/waysay/R$style
IncrementalSupportVisitor Visiting com/waysay/R$attr
IncrementalSupportVisitor Visiting com/waysay/R$dimen
IncrementalSupportVisitor Visiting com/waysay/R$integer
IncrementalSupportVisitor Visiting com/waysay/R$anim
IncrementalSupportVisitor Visiting com/waysay/BuildConfig
IncrementalSupportVisitor Visiting com/waysay/R$mipmap
IncrementalSupportVisitor Visiting com/waysay/R$menu
IncrementalSupportVisitor Visiting com/waysay/R
IncrementalSupportVisitor Visiting com/waysay/R$drawable
IncrementalSupportVisitor Visiting com/waysay/R$raw
IncrementalSupportVisitor Visiting com/waysay/R$layout
IncrementalSupportVisitor Visiting com/waysay/R$plurals
IncrementalSupportVisitor Visiting com/waysay/R$styleable
IncrementalSupportVisitor Visiting com/waysay/R$id
IncrementalSupportVisitor Visiting com/waysay/R$string
IncrementalSupportVisitor Visiting com/waysay/R$bool
IncrementalSupportVisitor Visiting com/waysay/models/WsModelPreference
IncrementalSupportVisitor Visiting com/waysay/models/WsModelMessage
IncrementalSupportVisitor Visiting com/waysay/models/ModelPreference$1
IncrementalSupportVisitor Visiting com/waysay/models/WsModelComment
IncrementalSupportVisitor Visiting com/waysay/models/ModelGetAnonymousJWT
IncrementalSupportVisitor Visiting com/waysay/models/ModelInboxFeed
IncrementalSupportVisitor Visiting com/waysay/models/ModelGetAnonymousJWT$1
IncrementalSupportVisitor Visiting com/waysay/models/ModelPreference
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$1
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterComment$CommentViewHolder
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder$1
IncrementalSupportVisitor Visiting com/waysay/adapters/AdapterPreference$1
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterComment
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage
IncrementalSupportVisitor Visiting com/waysay/adapters/AdapterPreference
IncrementalSupportVisitor Visiting com/waysay/adapters/RecyclerAdapterMessage$MessagesViewHolder$2
IncrementalSupportVisitor Visiting com/waysay/fragments/DummyFragment$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$2
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$2
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$4
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentComment
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$5
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$6
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$1
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile
IncrementalSupportVisitor Visiting com/waysay/fragments/DialogFragmentUserProfile$3
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$VerticalSpaceItemDecoration
IncrementalSupportVisitor Visiting com/waysay/fragments/DummyFragment
IncrementalSupportVisitor Visiting com/waysay/fragments/FragmentPlaceholder$3
IncrementalSupportVisitor Visiting com/waysay/constants/WsConstant
IncrementalSupportVisitor Visiting com/waysay/constants/ToolBarCustom$1
IncrementalSupportVisitor Visiting com/waysay/constants/ToolBarCustom
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$5
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$2
IncrementalSupportVisitor Visiting com/waysay/app/SplashActivity
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$1
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$4
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$6
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$3
IncrementalSupportVisitor Visiting com/waysay/app/MainActivity$SectionsPagerAdapter
IncrementalSupportVisitor Visiting com/waysay/helpers/ServiceConnection
IncrementalSupportVisitor Visiting com/waysay/helpers/WebviewFallback
IncrementalSupportVisitor Visiting com/waysay/helpers/KeepAliveService
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperVolley$1
IncrementalSupportVisitor Visiting com/waysay/helpers/CustomTabsHelper
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperVolley
IncrementalSupportVisitor Visiting com/waysay/helpers/HelperPreferences
IncrementalSupportVisitor Visiting com/waysay/helpers/CustomTabActivityHelper
IncrementalSupportVisitor Visiting com/waysay/helpers/WebviewActivity
IncrementalSupportVisitor Visiting android/support/design/R$color
IncrementalSupportVisitor Visiting android/support/design/R$style
IncrementalSupportVisitor Visiting android/support/design/R$attr
IncrementalSupportVisitor Visiting android/support/design/R$dimen
IncrementalSupportVisitor Visiting android/support/design/R$integer
IncrementalSupportVisitor Visiting android/support/design/R$anim
IncrementalSupportVisitor Visiting android/support/design/R
IncrementalSupportVisitor Visiting android/support/design/R$drawable
IncrementalSupportVisitor Visiting android/support/design/R$layout
IncrementalSupportVisitor Visiting android/support/design/R$styleable
IncrementalSupportVisitor Visiting android/support/design/R$id
IncrementalSupportVisitor Visiting android/support/design/R$string
IncrementalSupportVisitor Visiting android/support/design/R$bool
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$integer
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$anim
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$plurals
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/R$bool
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$color
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$style
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$attr
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$dimen
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$integer
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$anim
IncrementalSupportVisitor Visiting com/digits/sdk/android/R
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$drawable
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$raw
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$layout
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$styleable
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$id
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$string
IncrementalSupportVisitor Visiting com/digits/sdk/android/R$bool
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$color
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$style
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$attr
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/cardview/R
IncrementalSupportVisitor Visiting android/support/v7/cardview/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$color
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$style
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$attr
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$integer
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$anim
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$drawable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$layout
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$id
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$string
IncrementalSupportVisitor Visiting android/support/v7/appcompat/R$bool
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$attr
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$dimen
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$styleable
IncrementalSupportVisitor Visiting android/support/v7/recyclerview/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/core/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetcomposer/R$string
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$color
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$style
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$attr
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$dimen
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$drawable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$raw
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$layout
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$plurals
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$styleable
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$id
IncrementalSupportVisitor Visiting com/twitter/sdk/android/tweetui/R$string
:app:transformClassesWithInstant+restartDexForDebug
:app:transformClasses_enhancedWithInstant+reloadDexForDebug
:app:incrementalDebugSupportDex
:app:transformClassesWithDexForDebug
Error:Error converting bytecode to dex:
Cause: com.android.dex.DexException: Multiple dex files define Landroid/support/design/R$anim;
Error:Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/usr/lib/jvm/java-7-oracle/bin/java'' finished with non-zero exit value 2
Information:BUILD FAILED
Information:Total time: 1 mins 22.84 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console

任何帮助，将不胜感激。

好的。我不知道如何，但是这行得通。

首先，我清理了项目，然后运行该项目，一切正常。

简而言之，首先Clean，然后Run。

首先编辑Clean，然后Make Project也可以。

就我而言，我首先Clean是项目，然后按如下图所示的Make Project按钮，然后它开始工作。对我不起作用。Rebuild

而且我还必须更新Google Repository。

就我而言

apply plugin: 'com.google.gms.google-services'

在build.gradle文件底部，并设置multiDexEnabled true为defaultConfig。然后运行即可。

如果您要应用任何插件。然后，在模块Gradle文件（通常为app/build.gradle）中，确保在文件底部添加apply plugin一行以启用Gradle插件。

例如

我遇到了同样的问题，我清理了项目，导致其他一些问题无法清理，因此我手动删除了dir'build'，这样就可以清理好了，然后为我运行。

以我为例，发现此问题是由于build.gradle的配置不正确引起的。我有com.google.firebase的两个不同版本。一旦版本相同，问题就解决了

我遇到了同样的问题。
首先从项目位置删除 build文件夹（您可以通过android studio或使用资源管理器访问它），然后删除build项目。

就我而言，问题是由于某些包装中的大写字母。

只是restart您的AS，然后是Rebuild您的应用！

升级到Android Studio 2.1之后，下次重新启动时，系统要求我升级到JDK 1.8。在我升级到JDK 1.8之后，那就是我的AS项目无法编译的时候。我遵循了此页面中的所有建议，但无济于事。最后，我决定检查项目使用的JDK版本，令我惊讶的是，它某种程度上指向了JDK 1.8！

故事的寓意：如果compileSdkVersion <= 23，请仔细检查您的项目是否使用JDK1.7，如下所示：

• 鼠标在顶层模块上
• 项目结构=> JDK位置

就我而言，这是由于我的库未配置为“ android”。例如apply plugin:'java'代替apply plugin:'com.android.library'

检查您的build.gradle（模块：您的应用程序）。

所有com.google.android.gms库必须使用完全相同的版本规范（混合版本可能导致运行时崩溃）。

例如：如果您拥有com.google.firebase：firebase-ads：9.6.1和com.google.android.gms：play-services-basement：10.0.1

您必须将Firebase版本更改为：10.0.1

请在build.gradle中的android内部添加此块

dexOptions { preDexLibraries = false }

之前：

compile 'com.google.android.gms:play-services-location:10.0.1'
compile 'com.google.android.gms:play-services-auth:10.0.1'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-messaging:10.2.0'

后：

compile 'com.google.android.gms:play-services-location:10.2.0'
compile 'com.google.android.gms:play-services-auth:10.2.0'
compile 'com.google.firebase:firebase-database:10.2.0'
compile 'com.google.firebase:firebase-core:10.2.0'
compile 'com.google.firebase:firebase-messaging:10.2.0'

终于解决了。

我的项目在build.gradle文件（1.7和1.8）中使用了具有异构Java兼容版本的外部库。我通过对lib和app项目使用相同的版本来修复它。就我而言：

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
    }

如果从2个不同的来源将相同的库引入代码，则将导致错误。

这个问题主要发生在gradle或版本错误的库中，包括两个库都定义了相同类的库。展开并检查导入的外部库...

您不能将两个相同的类导出到一个地方或代码，因此，dexer不知道应使用哪一个。

由于某些原因，@ ChintanSoni的答案无效。我尝试build手动删除文件夹，但由于某些进程正在使用某些文件，因此无法删除某些文件。清理和重新构建项目无济于事，因此我打开task manager，选择JAVA(TM) Platform SE binary并按了“结束任务”。

然后，我尝试再次运行该项目，并且开始编译正常。

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile fileTree(include: 'Parse-*.jar', dir: 'libs')
    compile 'com.android.support:appcompat-v7:23.2.0'
    compile 'com.android.support:cardview-v7:23.2.0'
    compile 'com.android.support:design:24.0.0-alpha1'
    compile "com.google.firebase:firebase-invites:9.2.0"
    compile "com.google.firebase:firebase-ads:9.2.0"
    compile 'com.google.firebase:firebase-database:9.2.0'
    compile 'com.google.firebase:firebase-core:9.2.0'
}

我添加了这一com.google.firebase:firebase-core:9.2.0行，并为所有Firebase库选择了相同的版本（9.2.0），此问题已解决。

如果您有多个项目，请确保没有多次添加依赖项，我需要像这样排除另一个项目的依赖项：

compile(project(':OtherProject-SDK')) {
    compile.exclude module: 'play-services-gcm'
    compile.exclude module: 'play-services-location'
    compile.exclude module: 'support-v4'
    compile.exclude module: 'okhttp'
}

只是干净，然后重试为我解决。

尝试通过安装:app:installDebug。如果有效，则与Android Studio的缓存有关。我删除.gradle/了项目中的文件夹，它可以正常工作。

对我来说很容易。只需添加：

// noinspection GradleDependency，GradleCompatible实现'com.google.android.gms：play-services-auth：11.0.4'

...魔术发生了。

我遇到了同样的问题，这是由不相同版本的Google Analytics（分析）和Firebase引起的。我使用了'com.google.gms:google-services:3.1.0'然后添加了以下依赖项：

compile 'com.google.android.gms:play-services-gcm:10.2.6'
compile 'com.google.firebase:firebase-crash:10.0.1'

因此，将Firebase版本更改为10.2.6可以解决此问题。

compile 'com.google.android.gms:play-services-gcm:10.2.6'
compile 'com.google.firebase:firebase-crash:10.2.6'

这个问题有很多答案，但是，如果您还没有解决错误，这可能会起作用：

有时我们会从Google产品/ API导入不同版本，因此，请尝试组织您的gradle文件来解决以下问题：Mixing versions 警告

我遇到了同样的问题，并且意识到我在app / libs文件夹中拥有的两个单独的jar文件与子依赖项具有相同的程序包，这导致了冲突。

我已经注意到，在Android Studio构建过程中编辑Java文件时（有时）会发生这种情况。

我通过手动删除build文件夹并运行agin解决了这一问题。

如果它对某人有所帮助，就我而言，我使用的是发布模式而不是调试模式的自定义程序包。

我只是将软件包从“发行版”更改为“调试”，它就可以了。

对我有用的东西。

1. 转到您应用的android文件夹。
2. 运行./gradlew clean

首先，构建->清理项目->再次重建它。

如果不起作用，请在build.gradle中将设置multiDexEnabled为true

例如：

defaultConfig {
    applicationId "com.example.myapplication"
    minSdkVersion 21
    targetSdkVersion 27
    multiDexEnabled true
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner"android.support.test.runner.AndroidJUnitRunner"
}