Android Studio。无法正确包含外部库 [英] Android Studio. Can't include external library properly

问题描述

我正在尝试添加到classpath外部库（这一个）。我的方式：文件 - >项目结构 - >依赖选项卡 - >添加文件依赖。那是对的吗？ Maven的库列表没有Xstream。如果我单击添加模块依赖，列表为空。

I'm trying to add to classpath external library (this one). The way I do it: File -> Project Structure -> Dependencies tab -> Add file dependency. Is that correct? Maven's list of libraries doesn't have Xstream. And if I click add module dependency the list is empty.

我只需要在类路径中添加3个jar文件 - xstream1.4.7.jar ， xmlpull-1.1.3.1.jar 和 xpp3_min-1.1.4c 。所以我按照以前写的那样做了。事情是，在此之后，我可以包括这个库，一切似乎都好。但在运行项目后出现错误：

All I need is to add 3 jar files to classpath - xstream1.4.7.jar, xmlpull-1.1.3.1.jar and xpp3_min-1.1.4c. So I did it as wrote before. The thing is that after this I can include this library and everything seems Ok. But after running the project there is an error:

    Error:Execution failed for task ':gridview:dexDebug'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
    D:\adt-bundle-windows-x86_64-20140321\sdk\build-tools\android-4.4.2\dx.bat --dex --output D:\Mobile devices\Course Work\android studio\gridview\gridview\build\dex\debug D:\Mobile devices\Course Work\android studio\gridview\gridview\build\classes\debug D:\Mobile devices\Course Work\android studio\gridview\gridview\build\dependency-cache\debug D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\classes-80f8711ee653afcf7efe6b620bb026841cb6946a.jar D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\support-v4-19.1.0-269b660d78e582ad08c396ce1a171205a775b0a0.jar D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\xmlpull-1.1.3.1-e45616f42a2838037b23e662d2381fe8ba29f039.jar D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\xpp3_min-1.1.4c-26abc774a3b821df830ea21d4b6b0daf1ce5acb6.jar D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\xstream-1.4.7-12d1ec007d50d7a5412e6ce3abef54fbab1046d4.jar D:\Mobile devices\Course Work\android studio\gridview\gridview\build\pre-dexed\debug\xstream-benchmark-1.4.7-574037033c1552eddf3ff5624f95bc8d3d954d28.jar
Error Code:
    2
Output:
    UNEXPECTED TOP-LEVEL EXCEPTION:
    com.android.dex.DexException: Multiple dex files define Lorg/xmlpull/v1/XmlPullParser;
        at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:594)
        at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:552)
        at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:533)
        at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:170)
        at com.android.dx.merge.DexMerger.merge(DexMerger.java:188)
        at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:439)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:287)
        at com.android.dx.command.dexer.Main.run(Main.java:230)
        at com.android.dx.command.dexer.Main.main(Main.java:199)
        at com.android.dx.command.Main.main(Main.java:103)

此外，我在Intelij中使用常见的java测试了这个库，而不是android。这非常有效。所以我只是将工作代码从Intelij复制到Android Studio中，并且发生了错误。

Moreover, I have tested this library in Intelij with common java, not android. And that worked perfectly. So I just copied working code into Android Studio from Intelij and that error occurs.

以下是发生此错误的代码（如果需要）：

Here's the code where this error occurs (if needed):

FileReader reader = new FileReader("boards.xml");  // load file
XStream xstream = new XStream();
xstream.processAnnotations(Boards.class);
xstream.processAnnotations(IdBoards.class);
Boards boards = (Boards) xstream.fromXML(reader); // parse xml into array list

所以问题是如何正确添加外部库Android Studio？或者probaby还有其他问题吗？谢谢你的建议。

So the question is How to add external libraries properly to Android Studio? Or probaby there's some other problem? Thanks for advices.

推荐答案

xml pull解析器是android框架的一部分，删除xmlpull-1.1.3.1.jar并试一试可能会有效。

xml pull parser is a part of android framework, remove xmlpull-1.1.3.1.jar and try It might work.

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