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I have successfully created an aar package from an Android module. It includes Realm. I've created another sample app and I'm using the aar as a dependency inside it. However, whenever I try to run the project, it crashes.

 Process: com.example.abhil.myapplication, PID: 3352 java.lang.NoClassDefFoundError: Failed resolution of: Lio / realm / Realm; at ai.quinto.business.App.onCreate(App.java: 42) at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java: 1012) at android.app.ActivityThread.handleBindApplication(ActivityThread.java: 4553) at android.app.ActivityThread.access$1500(ActivityThread.java: 151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java: 1364) at android.os.Handler.dispatchMessage(Handler.java: 102) at android.os.Looper.loop(Looper.java: 135) at android.app.ActivityThread.main(ActivityThread.java: 5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java: 372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 903) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 698) Caused by: java.lang.ClassNotFoundException: Didn 't find class "io.realm.Realm" on path: DexPathList[[zip file "/data/app/com.example.abhil.myapplication-1/base.apk"],nativeLibraryDirectories=[/vendor/lib64, /system/lib64]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java: 56) at java.lang.ClassLoader.loadClass(ClassLoader.java: 511) at java.lang.ClassLoader.loadClass(ClassLoader.java: 469) at ai.quinto.business.App.onCreate(App.java: 42)  at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java: 1012)  at android.app.ActivityThread.handleBindApplication(ActivityThread.java: 4553)  at android.app.ActivityThread.access$1500(ActivityThread.java: 151)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java: 1364)  at android.os.Handler.dispatchMessage(Handler.java: 102)  at android.os.Looper.loop(Looper.java: 135)  at android.app.ActivityThread.main(ActivityThread.java: 5254)  at java.lang.reflect.Method.invoke(Native Method)  at java.lang.reflect.Method.invoke(Method.java: 372)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java: 903)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java: 698)  Suppressed: java.lang.ClassNotFoundException: io.realm.Realm at java.lang.Class.classForName(Native Method) at java.lang.BootClassLoader.findClass(ClassLoader.java: 781) at java.lang.BootClassLoader.loadClass(ClassLoader.java: 841) at java.lang.ClassLoader.loadClass(ClassLoader.java: 504)...13 more Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available 07 - 21 09: 19: 13.400 1159 - 1159 / ? E / EGL_emulation : tid 1159: eglCreateSyncKHR(1865): error 0x3004(EGL_BAD_ATTRIBUTE)
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AAR does not include dependencies. You should generate POM file, if you upload your library to Maven repository. Or provide instructions for connecting your library from local AAR

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4 Comments

Hi there, Can you please explain what exactly to do when using local aars in this case? Or any suitable links would be helpful.. thanks
@PSandeshBaliga You should manually specify all dependencies from library POM or you can put AAR+POM in your Maven repository
thanks for quick reply. In case of manually adding, Can you please tell how exactly to do it? Thanks.
just add each dependency from POM as <groupId>:<artifactId>:<version>

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