libgdx throwing an exception on helloworld app when ran in emulator

Question

I've followed the tutorial on http://www.youtube.com/watch?v=vLx_72qxK_0&feature=player_embedded and created a simple app with the libgdx library that makes an application with a red background.

This works fine when I run it as a stand alone desktop app, but when I run the -android version the exception below is thrown and the application fails to start.

02-04 18:25:27.536: W/dalvikvm(456): Exception Ljava/lang/UnsatisfiedLinkError; thrown while initializing Lcom/badlogic/gdx/backends/android/AndroidApplication;
02-04 18:25:27.536: W/dalvikvm(456): Class init failed in newInstance call (Lorg/gravity/main/GameAndroidActivity;)
02-04 18:25:27.567: D/AndroidRuntime(456): Shutting down VM
02-04 18:25:27.567: W/dalvikvm(456): threadid=1: thread exiting with uncaught exception (group=0x40015560)
02-04 18:25:27.676: E/AndroidRuntime(456): FATAL EXCEPTION: main
02-04 18:25:27.676: E/AndroidRuntime(456): java.lang.ExceptionInInitializerError
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.Class.newInstanceImpl(Native Method)
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.Class.newInstance(Class.java:1409)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.os.Handler.dispatchMessage(Handler.java:99)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.os.Looper.loop(Looper.java:123)
02-04 18:25:27.676: E/AndroidRuntime(456):  at android.app.ActivityThread.main(ActivityThread.java:3683)
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.reflect.Method.invokeNative(Native Method)
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.reflect.Method.invoke(Method.java:507)
02-04 18:25:27.676: E/AndroidRuntime(456):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
02-04 18:25:27.676: E/AndroidRuntime(456):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
02-04 18:25:27.676: E/AndroidRuntime(456):  at dalvik.system.NativeStart.main(Native Method)
02-04 18:25:27.676: E/AndroidRuntime(456): Caused by: java.lang.UnsatisfiedLinkError: Couldn't load gdx: findLibrary returned null
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.Runtime.loadLibrary(Runtime.java:429)
02-04 18:25:27.676: E/AndroidRuntime(456):  at java.lang.System.loadLibrary(System.java:554)
02-04 18:25:27.676: E/AndroidRuntime(456):  at com.badlogic.gdx.utils.GdxNativesLoader.load(GdxNativesLoader.java:111)
02-04 18:25:27.676: E/AndroidRuntime(456):  at com.badlogic.gdx.backends.android.AndroidApplication.<clinit>(AndroidApplication.java:58)
02-04 18:25:27.676: E/AndroidRuntime(456):  ... 15 more

Does anyone have any experience with this library?

Answer 1

fixed the issue by making sure the armeabi and armeabi-v7a folders were in /libs of the android project.

Answer 2

I found the problem was caused by trying to run on an android AVD with the intel atom x86 image. I believe you have to use an ARM image.

Answer 3

Source: How to import the x86 folders for android (July 2013)

The developpers told us that they give the missing x86 folder in the latest nightly so that you are not forced to use an ARM emulator.

So download the latest nightly below, and copy the x86 folder to the libs/ folder of your project/library project (where you will also find the armeabi and armeabi-v7a folders)

The latest nightly for libgdx containing the x86 folder to put in libs/

This solved the problem for me.