我有一个Android Maven项目，它使用的是纯Java库，在过去的几天里我一直在努力工作几个小时，无论我做什么，我总是会遇到以下错误：
[INFO] d:\Development-Android\SDKs\Android\platform-tools\aapt.exe [package, -f, -M, D:\Development-Android\Workspaces\Android-Workspace\S-O-D\AndroidManifest.xml, -S, D:\Development-Android\Workspaces\Android-Workspace\S-O-D\res, --auto-add-overlay, -A, D:\Development-Android\Workspaces\Android-Workspace\S-O-D\target\generated-sources\combined-assets\assets, -I, d:\Development-Android\SDKs\Android\platforms\android-7\android.jar, -F, D:\Development-Android\Workspaces\Android-Workspace\S-O-D\target\s-o-d-1.0.0.ap_]
[ERROR] Cannot add source folder
com.android.sdklib.build.DuplicateFileException: Duplicate files at the same path inside the APK
at com.android.sdklib.build.ApkBuilder.doAddFile(ApkBuilder.java:716)
at com.android.sdklib.build.ApkBuilder.processFileForResource(ApkBuilder.java:762)
at com.android.sdklib.build.ApkBuilder.addSourceFolder(ApkBuilder.java:587)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.jayway.maven.plugins.android.phase09package.ApkBuilder.addSourceFolder(ApkBuilder.java:244)
at com.jayway.maven.plugins.android.phase09package.ApkMojo.doAPKWithAPKBuilder(ApkMojo.java:341)
at com.jayway.maven.plugins.android.phase09package.ApkMojo.createApkFile(ApkMojo.java:249)
at com.jayway.maven.plugins.android.phase09package.ApkMojo.execute(ApkMojo.java:207)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:319)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
经过一段时间的尝试，我能够理解所提到的重复项，是输出目录中的重复文件，Android android-classes 文件夹之一，以及maven输出 classes 文件夹。
所以在我继续讨论之前，我试图找出（但我无法找到答案）Android Maven插件是否支持导入纯Java jar？
何，是的，非常重要，请干净安装，不仅要安装!!!
提前致谢，
Adam Zehavi。
答案 0 :(得分：2)
答案 1 :(得分：2)
好吧，我花了很长时间才完全理解这个错误来解决它，并且还从Eclipse快捷方式启用调试。
所以这里没有任何保证是一个通用的解决方案，到目前为止对我很有用，到目前为止我没有遇到任何问题：
我有父母pom：
<?xml version="1.0" encoding="UTF-8"?>
<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.nu.art.software.android</groupId>
<artifactId>android-maven-parent</artifactId>
<version>1.0.0</version>
<packaging>pom</packaging>
<name>android-maven-parent</name>
<url>http://maven.apache.org</url>
<properties>
<android.sdk>7</android.sdk>
<android.emulator.name>emulator1</android.emulator.name>
<android.version>2.1_r1</android.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>${android.version}</version>
<type>jar</type>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<sourceDirectory>src</sourceDirectory>
<outputDirectory>./target/android-classes</outputDirectory>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>maven-android-plugin</artifactId>
<version>3.0.0-alpha-2</version>
<configuration>
<sdk>
<platform>${android.sdk}</platform>
</sdk>
<emulator>
<avd>${android.emulator.name}</avd>
</emulator>
<deleteConflictingFiles>true</deleteConflictingFiles>
<undeployBeforeDeploy>true</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<id>unpack</id>
<phase>generate-sources</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<excludeScope>provided</excludeScope>
<skip>true</skip>
<includes>**/*.class</includes>
<outputDirectory>${project.basedir}/bin</outputDirectory>
<overWriteReleases>true</overWriteReleases>
<overWriteSnapshots>true</overWriteSnapshots>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<id>Make-classes-output</id>
<phase>clean</phase>
<goals>
<goal>run</goal>
</goals>
<inherited>true</inherited>
<configuration>
<tasks>
<echo>Creating '${project.basedir}/target/classes' Directory</echo>
<mkdir
dir="${project.basedir}/target/classes" />
</tasks>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
插件中缺少所有逻辑，以启用Eclipse的启动和调试，并解决了我的重复问题。 （我第一次使用res文件夹，作为源文件夹，搞砸了事情，后来在依赖项中重复了）
接下来每个最终项目都有自己的pom，它可以将依赖项复制到Eclipse输出文件夹：
<?xml version="1.0" encoding="UTF-8"?>
<project
xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<parent>
<artifactId>android-maven-parent</artifactId>
<groupId>com.nu.art.software.android</groupId>
<version>1.0.0</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>com.nu.art.software.sod</groupId>
<artifactId>s-o-d</artifactId>
<version>1.0.0</version>
<packaging>apk</packaging>
<name>S-O-D</name>
<dependencies>
<dependency>
<groupId>com.nu.art.software</groupId>
<artifactId>rexml</artifactId>
<version>0.0.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.nu.art.software</groupId>
<artifactId>nu-art-module-manager</artifactId>
<version>0.0.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.nu.art.software</groupId>
<artifactId>nu-art-generator</artifactId>
<version>0.0.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.nu.art.software</groupId>
<artifactId>nu-art-reflection</artifactId>
<version>0.0.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<id>unpack</id>
<configuration>
<skip>false</skip>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
最后一句话，在安装最终项目时，这个技巧将获取所有依赖项，将它们提取到Eclipse输出文件夹中，该文件夹被定义为'./bin'（默认ADT插件输出文件夹，如果我不是错误）。 之后，Eclipse使用数据构建APK，它在其输出文件夹中有wallah，你有和apk，F11可以用它来启动调试器。
这再次对我有用......我希望这对你也有帮助。
分享你的想法...... 亚当。
答案 2 :(得分：1)
里卡多的链接很好。
添加
<extractDuplicates>true</extractDuplicates>
到Maven插件的配置将确保Jars中的重复文件不会导致崩溃。否则，包含文件的多个Jars就像根包中的类似名称许可文件一样是个问题（例如jackson-2.2.0）