如果我从命令行运行gradle assembleDebug，我突然得到这个错误:
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dx.util.DexException: Multiple dex files define Landroid/support/v4/accessibilityservice/AccessibilityServiceInfoCompat$AccessibilityServiceInfoVersionImpl;
at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:592)
at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:550)
at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:531)
at com.android.dx.merge.DexMerger.mergeDexBuffers(DexMerger.java:168)
at com.android.dx.merge.DexMerger.merge(DexMerger.java:186)
at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:300)
at com.android.dx.command.dexer.Main.run(Main.java:232)
at com.android.dx.command.dexer.Main.main(Main.java:174)
at com.android.dx.command.Main.main(Main.java:91)
如果我grep for v4，我会在构建文件夹中看到两个文件。
Binary file build/pre-dexed/debug/support-v4-19.0.0-2ba5fdd60a6c3836b3104a863fe42897da1fa9d1.jar matches
Binary file build/pre-dexed/debug/support-v4-r7-227d905d79b23b20866531d4f700446c040a2ccb.jar matches
我的gradle文件只包括这个支持库:
compile 'com.android.support:support-v13:19.0.0'
我不知道r7库是如何被包含进来的。我已经运行gradle清洁，它总是出现在那里，当我重新运行assembleDebug。
如果我在构建目录中grep r7，我看到它在文件中:
Binary file build/exploded-bundles/ComGoogleAndroidGmsPlayServices4030.aar/classes.jar matches
如果我不包含v13，那么其他东西就不能编译。
但是v13不包括v4支持库吗?
这是播放服务AAR包和v13库之间的不兼容性吗?
我从gradleplease.appspot.com上抓取了gradle文件。
删除播放服务并不能解决这个问题;同样的错误。
我在build.gradle中的依赖项:
dependencies {
// Google Play Services
//compile 'com.google.android.gms:play-services:4.0.30'
// Support Libraries
//compile 'com.android.support:support-v4:19.0.0'
///compile 'com.android.support:appcompat-v7:19.0.0'
//compile 'com.android.support:gridlayout-v7:19.0.0'
compile 'com.android.support:support-v13:19.0.0'
compile 'org.eclipse.mylyn.github:org.eclipse.egit.github.core:2.1.5'
compile 'commons-codec:commons-codec:1.9'
compile 'com.madgag:markdownj-core:0.4.1'
compile 'com.wu-man:android-oauth-client:0.0.2'
compile 'com.google.http-client:google-http-client-jackson2:1.17.0-rc'
compile 'org.apache.commons:commons-lang3:3.2'
compile 'com.google.code.gson:gson:2.2.4'
}
当添加react-native-palette到我的项目时，我也有同样的问题，这是我的依赖树:
./gradlew app:dependencies
+--- project :react-native-palette
| +--- com.facebook.react:react-native:0.20.+ -> 0.44.2
| | +--- javax.inject:javax.inject:1
| | +--- com.android.support:appcompat-v7:23.0.1
| | | \--- com.android.support:support-v4:23.0.1
| | | \--- com.android.support:support-annotations:23.0.1 -> 24.2.1
...
| \--- com.android.support:palette-v7:24.+ -> 24.2.1
| +--- com.android.support:support-compat:24.2.1
| | \--- com.android.support:support-annotations:24.2.1
| \--- com.android.support:support-core-utils:24.2.1
| \--- com.android.support:support-compat:24.2.1 (*)
+--- com.android.support:appcompat-v7:23.0.1 (*)
\--- com.facebook.react:react-native:+ -> 0.44.2 (*)
我尝试了很多解决方案，都无法修复，直到更改了com.android。支持:android/app/build中的appcompat版本。gradle，我希望这能有所帮助:
dependencies {
compile project(':react-native-palette')
compile project(':react-native-image-picker')
compile project(':react-native-camera')
compile fileTree(dir: "libs", include: ["*.jar"])
// compile "com.android.support:appcompat-v7:23.0.1"
compile "com.android.support:appcompat-v7:24.2.1"
compile "com.facebook.react:react-native:+"
}
多条目似乎不是大问题，版本不匹配才是
当添加react-native-palette到我的项目时，我也有同样的问题，这是我的依赖树:
./gradlew app:dependencies
+--- project :react-native-palette
| +--- com.facebook.react:react-native:0.20.+ -> 0.44.2
| | +--- javax.inject:javax.inject:1
| | +--- com.android.support:appcompat-v7:23.0.1
| | | \--- com.android.support:support-v4:23.0.1
| | | \--- com.android.support:support-annotations:23.0.1 -> 24.2.1
...
| \--- com.android.support:palette-v7:24.+ -> 24.2.1
| +--- com.android.support:support-compat:24.2.1
| | \--- com.android.support:support-annotations:24.2.1
| \--- com.android.support:support-core-utils:24.2.1
| \--- com.android.support:support-compat:24.2.1 (*)
+--- com.android.support:appcompat-v7:23.0.1 (*)
\--- com.facebook.react:react-native:+ -> 0.44.2 (*)
我尝试了很多解决方案，都无法修复，直到更改了com.android。支持:android/app/build中的appcompat版本。gradle，我希望这能有所帮助:
dependencies {
compile project(':react-native-palette')
compile project(':react-native-image-picker')
compile project(':react-native-camera')
compile fileTree(dir: "libs", include: ["*.jar"])
// compile "com.android.support:appcompat-v7:23.0.1"
compile "com.android.support:appcompat-v7:24.2.1"
compile "com.facebook.react:react-native:+"
}
多条目似乎不是大问题，版本不匹配才是
运行gradle -q dependencies(或gradle -q:projectName:dependencies)生成依赖项报告。你应该看到r7从哪里来，比如:
compile - Classpath for compiling the main sources.
+--- com.commonsware.cwac:camera-v9:0.5.4
| +--- com.actionbarsherlock:actionbarsherlock:4.4.0
| | \--- com.google.android:support-v4:r7
| +--- com.commonsware.cwac:camera:0.5.4
| \--- com.android.support:support-v4:18.0.+ -> 18.0.0
\--- com.android.support:support-v4:18.0.+ -> 18.0.0
然后，使用exclude指令来阻止该依赖。在我的情况下，它来自我的cwc - camera库，所以我使用:
dependencies {
compile('com.commonsware.cwac:camera-v9:0.5.4') {
exclude module: 'support-v4'
}
compile 'com.android.support:support-v4:18.0.+'
}
(其中第二个compile语句指示您实际需要的版本)
如果你再次运行依赖报告，你会看到:
compile - Classpath for compiling the main sources.
+--- com.commonsware.cwac:camera-v9:0.5.4
| +--- com.actionbarsherlock:actionbarsherlock:4.4.0
| \--- com.commonsware.cwac:camera:0.5.4
\--- com.android.support:support-v4:18.0.+ -> 18.0.0
