在android项目和库中使用支持库（Android Studio） [英] Use support library in android projects and library (Android Studio)

问题描述

我正在使用新的Android Studio，正在寻找一种使用多个项目中的支持​​库的方法。基本上，我有一个使用 ActionBarSherlock 的项目，该项目需要支持库。因此，我在此问题中添加了参考。

I'm using the new Android Studio, I'm looking for a way to use the support library from multiple projects. Basically I have a project that uses the ActionBarSherlock this projects requires the support library. So I added a reference as like in this question.

现在，我的主项目也使用了支持库，因此我以某种方式包含了两次支持库。如果我从这两个项目之一中删除该库，则会收到一些错误，指出与支持库相关的某些类是未知的，这对我来说很明显，但是如果我在这两个项目中都有引用，则会遇到此错误：

Now I have the problem that my main project also uses the support library so I have it includes twice in some way. If I remove the library from one of both projects I'll get errors that some support library related classes are unknown which is clear for me, but if I have a reference in both projects I'll face this error:

Android Dex: [ProjectName] UNEXPECTED TOP-LEVEL EXCEPTION:
Android Dex: [ProjectName] java.lang.IllegalArgumentException: already added: Landroid/support/v4/app/ShareCompat$ShareCompatImplJB;
Android Dex: [ProjectName] at com.android.dx.dex.file.ClassDefsSection.add(ClassDefsSection.java:123)
Android Dex: [ProjectName] at com.android.dx.dex.file.DexFile.add(DexFile.java:163)
Android Dex: [ProjectName] at com.android.dx.command.dexer.Main.processClass(Main.java:490)
Android Dex: [ProjectName] at com.android.dx.command.dexer.Main.processFileBytes(Main.java:459)
...

有什么办法解决这个问题吗？

Any idea how to fix this?

推荐答案

我通过进入文件>项目结构... ，然后选择模块，然后单击模块的依赖项标签。然后在库旁边，将范围从 Compile 更改为已提供。

I fixed this by going into File > Project Structure... and selecting Modules then click on the module's Dependencies tab. Then next to the library I changed the scope from Compile to Provided.

这意味着该模块仍然可以使用它，但是由于尚未实现编译，因为我认为您已经在主项目中使用了该JAR。

This means the module can still use it, but it doesn't reach compile, since I assume you are already using that JAR in your main project.

希望这会有所帮助！

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