编译报错

[swiftech]

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.

java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex

环境：
AndroidStudio 3.0.1

[autismbug]

v4 包重复了，应该是 tess-two.tesseract3.01-leptonica1.68-LibJPEG6b.jar 中也有 v4 的依赖。
把 app 目录下的 build.gradle 中的 dependencies 修改下就可以了。

dependencies {
//compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.1.1'
compile files('libs/tess-two.tesseract3.01-leptonica1.68-LibJPEG6b.jar')
}