android studio 引用自己的类库设置

Some things to point out, make sure you have your settings.gradle updated to reference both the app and library modules.

settings.gradle: include ':app', ':libraries:lib1', ':libraries:lib2'

Also make sure that the app's build.gradle has the followng:

dependencies {
     compile project(':libraries:lib1')
}

You should have the following structure:

 MyProject/
  | settings.gradle
  + app/
    | build.gradle
  + libraries/
    + lib1/
       | build.gradle
    + lib2/
       | build.gradle

The app's build.gradle should use thecom.android.application plugin while any libraries' build.gradle should use thecom.android.library plugin.

The Android Studio IDE should update if you're able to build from the command line with this setup.