不能添加依赖项到Android项目

Question

我想添加'commons-validator'到基于gradle的Android Studio中的我的android项目。我使用UrlValidator来满足我的需求。

所以我在添加一个应用程序模块的build.gradle的依赖关系：

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    compile 'com.android.support:appcompat-v7:23.0.1' 
    compile 'commons-validator:commons-validator:1.4.1' // this one 
} 

而且使用图书馆的AndroidManifest应用标签：

<uses-library android:name="org.apache.commons.validator.routines.UrlValidator" 
     android:required="true"/> 

但加入之后我的项目失败跑步。

Error:Execution failed for task ':app:dexDebug'. com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home/bin/java'' finished with non-zero exit value 2

而且我得到

Warning:Dependency commons-logging:commons-logging:1.2 is ignored for debug as it may be conflicting with the internal version provided by Android. In case of problem, please repackage it with jarjar to change the class packages

4次：两个用于调试和两个用于释放。

Answer 1

我认为问题是传递依赖。研究一些所谓的主题后，我在我的控制台中写道：

cd app/ #to enter app module folder 
../gradlew dependencies 

这给了我下面的输出：

_debugCompile - ## Internal use, do not manually configure ## 
+--- commons-validator:commons-validator:1.4.1 
| +--- commons-beanutils:commons-beanutils:1.8.3 
| | \--- commons-logging:commons-logging:1.1.1 -> 1.2 
| +--- commons-digester:commons-digester:1.8.1 
| +--- commons-logging:commons-logging:1.2 
| \--- commons-collections:commons-collections:3.2.1 

因此，我已将此添加的build.gradle：

compile('commons-validator:commons-validator:1.4.1'){ 
     exclude group: 'commons-logging' 
     exclude group: 'commons-collections' 
     exclude group: 'commons-digester' 
     exclude group: 'commons-beanutils' 
} 

还有些人告诉添加multiDexEnabled truedefaultConfig部分，但因为我试过它没有它的作品对我来说。

As @Brucelet说 - 从清单中删除<uses-library>标记。

它运行和正常工作，虽然gradle这个输出给很多一些AGPBI消息：

AGPBI: {"kind":"simple","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","sources":[{}]} AGPBI: {"kind":"simple","text":"(org.apache.commons.validator.CreditCardValidator$1) that doesn\u0027t come with an","sources":[{}]} AGPBI: {"kind":"simple","text":"associated EnclosingMethod attribute. This class was probably produced by a","sources":[{}]} AGPBI: {"kind":"simple","text":"compiler that did not target the modern .class file format. The recommended","sources":[{}]} AGPBI: {"kind":"simple","text":"solution is to recompile the class from source, using an up-to-date compiler","sources":[{}]} AGPBI: {"kind":"simple","text":"and without specifying any \"-target\" type options. The consequence of ignoring","sources":[{}]} AGPBI: {"kind":"simple","text":"this warning is that reflective operations on this class will incorrectly","sources":[{}]} AGPBI: {"kind":"simple","text":"indicate that it is not an inner class.","sources":[{}]} AGPBI: {"kind":"simple","text":"warning: Ignoring InnerClasses attribute for an anonymous inner class","sources":[{}]} AGPBI: {"kind":"simple","text":"(org.apache.commons.validator.ValidatorResources$1) that doesn\u0027t come with an","sources":[{}]} AGPBI: {"kind":"simple","text":"associated EnclosingMethod attribute. This class was probably produced by a","sources":[{}]} AGPBI: {"kind":"simple","text":"compiler that did not target the modern .class file format. The recommended","sources":[{}]} AGPBI: {"kind":"simple","text":"solution is to recompile the class from source, using an up-to-date compiler","sources":[{}]} AGPBI: {"kind":"simple","text":"and without specifying any \"-target\" type options. The consequence of ignoring","sources":[{}]} AGPBI: {"kind":"simple","text":"this warning is that reflective operations on this class will incorrectly","sources":[{}]} AGPBI: {"kind":"simple","text":"indicate that it is not an inner class.","sources":[{}]}

Answer 2

尝试删除<uses-library>标记。这是为了要求用户在安装应用程序之前安装某个外部库。由于您希望在代码中内部包含库，因此Gradle依赖性应该足够。