android maven Unable to execute dex: Multiple dex files define

环境：开发 android

eclipse + maven

在使用 maven 开发 android 中

<dependencies><dependency><groupId>net.lingala.zip4j</groupId><artifactId>zip4j</artifactId><version>1.3.2</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpmime</artifactId><version>4.4-beta1</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpcore</artifactId><version>4.4-beta1</version></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.10</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency></dependencies>

编译中出现

Unable to execute dex: Multiple dex files define Lorg/apache/commons/logging/Log;

Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lorg/apache/commons/logging/Log;

在android 更目录中使用 mvn dependency:tree

[INFO] Scanning for projects...[WARNING][WARNING] Some problems were encountered while building the effective model for DefinitiveGuide:DefinitiveGuide:apk:0.0.1-SNAPSHOT[WARNING] 'build.plugins.plugin.version' for com.jayway.maven.plugins.android.generation2:maven-android-plugin is missing. @ line 55, column 12[WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 47, column 12[WARNING][WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.[WARNING][WARNING] For this reason, future Maven versions might no longer support building such malformed projects.[WARNING][INFO][INFO] ------------------------------------------------------------------------[INFO] Building DefinitiveGuide 0.0.1-SNAPSHOT[INFO] ------------------------------------------------------------------------[INFO][INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ DefinitiveGuide ---[INFO] DefinitiveGuide:DefinitiveGuide:apk:0.0.1-SNAPSHOT[INFO] +- net.lingala.zip4j:zip4j:jar:1.3.2:compile[INFO] +- org.apache.httpcomponents:httpmime:jar:4.4-beta1:compile[INFO] |  \- org.apache.httpcomponents:httpclient:jar:4.4-beta1:compile[INFO] |     \- commons-logging:commons-logging:jar:1.1.3:compile[INFO] +- org.apache.httpcomponents:httpcore:jar:4.4-beta1:compile[INFO] +- commons-codec:commons-codec:jar:1.10:compile[INFO] \- com.alibaba:fastjson:jar:1.2.3:compile[INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 2.021 s[INFO] Finished at: 2015-01-10T13:12:11+08:00[INFO] Final Memory: 19M/219M[INFO] ------------------------------------------------------------------------

修改 pom.xml 文件

<dependencies><dependency><groupId>net.lingala.zip4j</groupId><artifactId>zip4j</artifactId><version>1.3.2</version></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpmime</artifactId><version>4.4-beta1</version><span style="color:#FF6666;"><!-- 去掉重复 jar 包 --><exclusions><exclusion><artifactId>commons-logging</artifactId><groupId>commons-logging</groupId></exclusion></exclusions></span></dependency><dependency><groupId>org.apache.httpcomponents</groupId><artifactId>httpcore</artifactId><version>4.4-beta1</version></dependency><dependency><groupId>commons-codec</groupId><artifactId>commons-codec</artifactId><version>1.10</version></dependency><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.3</version></dependency></dependencies>

编译顺利完成。运行也OK。

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