This means that library projects cannot import the R class from another library project they depend on. Only main application projects generates the Library R classes alongside their own.

Library Project do not generate the R class for Library Projects they depend on.

The R class is not packaged in the jar output of Library Projects anymore.Important change: We have changed the way Library Projects generate and package R classes: This will prevent the dreaded “already added” error from dx. These items, plus the output of the compilation of the project’s own source code, are sent to dex for bytecode conversion and inclusion in the final APK.īecause a project could depend on several libraries using the same jar files, the build system now looks at all the required jar files, detects duplicates coming from different libraries and removes them. The content of the project’s libs/*.jar.With no other setup needed than adding Library Projects as a dependency in project.properties, a project’s classpath is automatically populated with: Projects have source folders, as well as Library Project and jar file dependencies. The first thing we changed was to align both the Ant-based build system and the Eclipse plug-in so that they behave the same.

In revision 17 of the Android SDK Tools and of the Eclipse ADT plug-in, we have made a lot of improvements to the dependency management of Android projects.

Github android studio replace project