问题描述
我正在尝试在 Android Studio 的项目中使用 Facebook SDK.我正在遵循 这个教程.当我尝试运行该应用程序时,出现Gradle:任务':FacebookApp:dexDebug' 执行失败".错误.下面是错误的输出
I am trying to use the Facebook SDK in a project in Android Studio. I am following step 3 of this tutorial. When I try to Run the app, I get a "Gradle: Execution failed for task ':FacebookApp:dexDebug'." error. Below is the output if the error
Gradle: Execution failed for task ':FacebookApp:dexDebug'.
> Failed to run command:
C:\android-sdk\build-tools\18.0.0\dx.bat --dex --output C:\Users\Brandon\AndroidStudioProjects\FacebookAppProject\FacebookApp\build\libs\FacebookApp-debug.dex C:\Users\Brandon\AndroidStudioProjects\FacebookAppProject\FacebookApp\build\classes\debug C:\Users\Brandon\AndroidStudioProjects\FacebookAppProject\FacebookApp\build\dependency-cache\debug C:\Users\Brandon\AndroidStudioProjects\FacebookAppProject\FacebookApp\build\exploded-bundles\FacebookAppProjectLibrariesFacebookUnspecified.aar\classes.jar C:\Users\Brandon\AndroidStudioProjects\FacebookAppProject\FacebookApp\build\exploded-bundles\FacebookAppProjectLibrariesFacebookUnspecified.aar\libs\android-support-v4.jar C:\android-sdk\extras\android\m2repository\com\android\support\support-v4\13.0.0\support-v4-13.0.0.jar
Error Code:
1
Output:
UNEXPECTED TOP-LEVEL EXCEPTION:
java.lang.IllegalArgumentException: already added: Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoIcsImpl;
at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123)
at com.android.dx.dex.file.DexFile.add(DexFile.java:163)
at com.android.dx.command.dexer.Main.processClass(Main.java:490)
at com.android.dx.command.dexer.Main.processFileBytes(Main.java:459)
at com.android.dx.command.dexer.Main.access$400(Main.java:67)
at com.android.dx.command.dexer.Main$1.processFileBytes(Main.java:398)
at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:245)
at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:131)
at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:109)
at com.android.dx.command.dexer.Main.processOne(Main.java:422)
at com.android.dx.command.dexer.Main.processAllFiles(Main.java:333)
at com.android.dx.command.dexer.Main.run(Main.java:209)
at com.android.dx.command.dexer.Main.main(Main.java:174)
at com.android.dx.command.Main.main(Main.java:91)
1 error; aborting
这是 facebook 模块的 build.gradle:
Here is the build.gradle for the facebook module:
buildscript {
repositories {
maven { url 'http://repo1.maven.org/maven2' }
}
dependencies {
classpath 'com.android.tools.build:gradle:0.5.+'
}
}
apply plugin: 'android-library'
dependencies {
compile files('libs/android-support-v4.jar')
}
android {
compileSdkVersion 18
buildToolsVersion "18.0.0"
defaultConfig {
minSdkVersion 7
targetSdkVersion 16
}
sourceSets {
main {
manifest.srcFile 'AndroidManifest.xml'
java.srcDirs = ['src']
resources.srcDirs = ['src']
res.srcDirs = ['res']
}
}
}
以及项目的 build.gradle:
And the build.gradle for the project:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.5.+'
}
}
apply plugin: 'android'
repositories {
mavenCentral()
}
dependencies {
compile 'com.android.support:support-v4:13.0.+'
compile project(':libraries:facebook')
}
android {
compileSdkVersion 18
buildToolsVersion "18.0.0"
defaultConfig {
minSdkVersion 7
targetSdkVersion 16
}
}
我做错了吗?
推荐答案
您两次添加 android 支持库,导致 dex 合并冲突.您的主项目使用 'com.android.support:support-v4:13.0.+'
引用 maven 库,而您的 Facebook 项目使用 files('libs/android-support-v4.jar')
.Gradle 无法解决本地jar 文件之间的冲突,必须通过maven 引用.
You're adding the android support library twice, resulting in a dex merge conflict. Your main project refers to the maven library with 'com.android.support:support-v4:13.0.+'
and your Facebook project refers to it with files('libs/android-support-v4.jar')
. Gradle cannot resolve conflicts between local jar files, so you must refer to them through maven.
将您的 Facebook build.gradle 的 dependencies
部分修改为:
Modify the dependencies
section of your Facebook build.gradle to:
dependencies {
compile 'com.android.support:support-v4:13.0.+'
}
一切正常.
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