Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'. > com.android.bui

         

      下午好，今天来看看我遇到的一个问题（错误如下）：

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'. > com.android.bui

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/rxjava.properties
File1: C:\Users\pc\.gradle\daemon\gradle-2.8\wrapper\dists\gradle-3.3-all\caches\modules-2\files-2.1\io.reactivex\rxjava\1.1.5\ece7b5d0870e66d8226dab6dcf47a2b12afff061\rxjava-1.1.5.jar
File2: C:\Users\pc\.gradle\daemon\gradle-2.8\wrapper\dists\gradle-3.3-all\caches\modules-2\files-2.1\io.reactivex.rxjava2\rxjava\2.0.7\21734c0092a5d3c3ec99510e50c1ff76bdf0c65a\rxjava-2.0.7.jar

这是一个关于rxjava包冲突的错误，也就是说，我们导入了两个不同版本的rxjava的包而导致的，IDE可能是无法自己选择某一个从而导致的一个冲突，废话不多说，直接看看怎么解决：

android {
compileSdkVersion rootProject.ext.android["compileSdkVersion"]
buildToolsVersion rootProject.ext.android["buildToolsVersion"]
useLibrary 'org.apache.http.legacy'

compileOptions {
targetCompatibility JavaVersion.VERSION_1_8
sourceCompatibility JavaVersion.VERSION_1_8
}

defaultConfig {
applicationId "me.jessyan.mvparms.demo"
minSdkVersion rootProject.ext.android["minSdkVersion"]
targetSdkVersion rootProject.ext.android["targetSdkVersion"]
versionCode rootProject.ext.android["versionCode"]
versionName rootProject.ext.android["versionName"]
testInstrumentationRunner rootProject.ext.dependencies["androidJUnitRunner"]
}
buildTypes {

debug {
buildConfigField "boolean", "LOG_DEBUG", "true"
buildConfigField "boolean", "USE_CANARY", "true"
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}

release {
buildConfigField "boolean", "LOG_DEBUG", "false"
buildConfigField "boolean", "USE_CANARY", "false"
minifyEnabled true
shrinkResources true
zipAlignEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
packagingOptions{
exclude 'META-INF/rxjava.properties'
exclude 'META-INF/NOTICE' // will not include NOTICE file
exclude 'META-INF/LICENSE' // will not include LICENSE file
// as noted by @Vishnuvathsan you may also need to include
// variations on the file name. It depends on your dependencies.
// Some other common variations on notice and license file names
exclude 'META-INF/notice'
exclude 'META-INF/notice.txt'
exclude 'META-INF/license'
exclude 'META-INF/license.txt'
}

lintOptions {
disable 'InvalidPackage'
disable "ResourceType"
abortOnError false
}
}

buildscript {
repositories {
jcenter()
}
}

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
//support
compile(rootProject.ext.dependencies["cardview-v7"]) {
exclude module: 'support-annotations'
}
//tools
annotationProcessor rootProject.ext.dependencies["dagger2-compiler"]
compile rootProject.ext.dependencies["progressmanager"]
compile rootProject.ext.dependencies["retrofit-url-manager"]

provided rootProject.ext.dependencies["javax.annotation"]//dagger2必须依赖jsr250 annotation

//view
annotationProcessor(rootProject.ext.dependencies["butterknife-compiler"]) {
exclude module: 'support-annotations'
exclude module: 'butterknife-annotations'
}
compile rootProject.ext.dependencies["paginate"]
//arms
compile project(':arms')
//    compile 'me.jessyan:arms:2.2.3'
//test
testCompile rootProject.ext.dependencies["junit"]
debugCompile rootProject.ext.dependencies["canary-debug"]
releaseCompile rootProject.ext.dependencies["canary-release"]
testCompile rootProject.ext.dependencies["canary-release"]
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'

compile 'com.google.code.gson:gson:2.3'
compile 'com.squareup.retrofit:retrofit:2.0.0-beta1'
compile 'com.squareup.retrofit:converter-gson:2.0.0-beta2'
compile 'com.squareup.okhttp:okhttp:2.4.0'

compile 'com.squareup.retrofit:retrofit:2.0.0-beta2'
compile 'com.squareup.retrofit:adapter-rxjava:2.0.0-beta2'
//    compile 'io.reactivex:rxjava:1.1.0'
compile 'io.reactivex:rxandroid:1.1.0'
compile 'com.squareup.retrofit2:adapter-rxjava:2.0.2'
compile 'com.squareup.retrofit2:converter-scalars:2.1.0'
compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
}

上面是我的build.gradle文件，大家可以看看添加的代码放在什么位置，下面是我所添加的代码，来看看吧：

packagingOptions{
exclude 'META-INF/rxjava.properties'
exclude 'META-INF/NOTICE' // will not include NOTICE file
exclude 'META-INF/LICENSE' // will not include LICENSE file
// as noted by @Vishnuvathsan you may also need to include
// variations on the file name. It depends on your dependencies.
// Some other common variations on notice and license file names
exclude 'META-INF/notice'
exclude 'META-INF/notice.txt'
exclude 'META-INF/license'
exclude 'META-INF/license.txt'
}

我的错误是导入了两个rxjava的不同版本的包导致的，因为IDE好像无法从两个包里去选择一个来用，从而导致了依赖包的冲突，所以除了rxjava的冲突还有可能在我们导依赖包的时候出现其他的包的冲突，这都要在packagingOptions里添加对应的过滤，添加这句是用来滤文件配置的，我的错误解决是添加下面一句rxjava的过滤代码：

exclude 'META-INF/rxjava.properties'

OK，再也不用担心重新来过啦，希望对大家有所帮助，谢谢！