Develop Reference

brainsketchscan keeps stopping on android

While using Futronic finger print, it throws an error "BrainSketchScan keeps stopping" and exits the program on Android Pixel 4a phone. I tried using clear cache and storage etc., but it does not resolve the issue.
On the console it throws the following error
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.futronictechs, PID: 18154
java.lang.UnsatisfiedLinkError: dlopen failed: library "libusb-1.0.so" not found
Can someone please help, as I am not able to use the Futronic fingerprint scanner on Android 10+ version phones
I tried using clear cache and storage etc., but it does not resolve the issue.
On the console it throws the following error
Tried ensuring that the libs are available in the respective folder

Fatal Exception: java.lang.IllegalAccessError: tried to access method android.support.v4.app.FragmentActivity.onReallyStop:()

The following crash increased from one release to the other, once we switched from generating a release build from a windows machine to a Mac OS X machine. It happens primarily with Android 4 (90% + )
Any help is appreciated.
Fatal Exception: java.lang.IllegalAccessError: tried to access method android.support.v4.app.FragmentActivity.onReallyStop:()V from class xx.com.app.view.orderflow.OrderActivity
at xx.com.app.view.orderflow.OrderActivity.onReallyStop(OrderActivity.java)
at android.support.v4.app.FragmentActivity.doReallyStop(FragmentActivity.java:668)
at android.support.v4.app.FragmentActivity$1.handleMessage(FragmentActivity.java:87)

java.lang.noclassdeffounderror with libgdx and Android studio on the androidLauncher

I imported a package of my own called server (the logic of my program) and was going to use libgdx for the graphics/cross platform. The desktop launcher works fine but when I run the android launcher I get this nasty error referring to my own library.
E/AndroidRuntime: FATAL EXCEPTION: GLThread 187
Process: com.mygdx.game, PID: 8093
java.lang.NoClassDefFoundError: server.Point
at server.Shape.<init>(Shape.java:9)
at server.T.<init>(T.java:7)
at server.Stack.<init>(Stack.java:28)
at server.Logic.<init>(Logic.java:14)
at com.mygdx.game.GameLoop.create(GameLoop.java:43)
at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphics.java:275)
at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1511)
at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1239)
any help would be great

I solved it!
It was because I was using java.awt.point in the android build. So I basically wrote a new point class, replace it, and then cleaned my project. Everything works now

My Hello World does run, but only shortly - Android

all I am doing:
Eclipse --> new Project --> Android Application --> Activity type: blank
no changes in the code, just the simple Hello world.
It does start, I see the Hello World on the virtual device, but then immediately shuts down.
The logcat is as follows:
08-31 06:01:14.976: W/dalvikvm(1114): threadid=1: thread exiting with uncaught exception(group=0xb2aeeba8)
08-31 06:01:14.996: E/AndroidRuntime(1114): FATAL EXCEPTION: main
08-31 06:01:14.996: E/AndroidRuntime(1114): Process: com.example.tester, PID: 1114
08-31 06:01:14.996: E/AndroidRuntime(1114): java.lang.NoClassDefFoundError: android.support.v7.appcompat.R$styleable
08-31 06:01:14.996: E/AndroidRuntime(1114): at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:107)
Any Ideas?
Edit:
Ok, apparently I for some reason have a dependency mixup:
Found 2 versions of android-support-v4.jar in the dependency list,
[2014-08-31 12:22:46 - tester] but not all the versions are identical (check is based on SHA-1 only at this
Can I simply delete one of them?

The error is essentially telling you that it can't find the Android Support Library, which it is using as a dependency.
Without knowing what build process you're using (e.g gradle) it's difficult to tell you how to fix it, but basically you'll need to either add it as a dependency, or remove the code that requires it.
For more information on the Android Support Library, try this:
https://developer.android.com/tools/support-library/index.html

If do not work the try this :
Step #1: Undo all that. If you are messing with the build path, on R16 or higher version of the ADT plugin for Eclipse, you're doing it wrong.
Step #2: Pick one of those two versions of the JAR, or pick the one from the "extras" area of your SDK installation.
Step #3: Put the right JAR in App Library.
Step #4: Delete the one from App Free, since it will pick up that JAR from App Library.

fatal error: Unable to instantiate application android.app.Application

I am working on a school project to create basic android apps. It runs very well before I added few classes (I copy-paste them from my previous classes, it has the same logic/structure but different XML)
When I tried to run my 'updated' app, logCat always show this error:
05-07 09:19:15.402: E/AndroidRuntime(1370): FATAL EXCEPTION: main
05-07 09:19:15.402: E/AndroidRuntime(1370): java.lang.RuntimeException: Unable to instantiate application android.app.Application: java.lang.IllegalStateException: Unable to get package info for com.anatomi; is package not installed?
05-07 09:19:15.402: E/AndroidRuntime(1370): at android.app.LoadedApk.makeApplication(LoadedApk.java:509)
and then, on the emulator, the "unfortunately, application has stopped" message appears.
However after I pressed OK, it's not even crashing and the app runs as normal.
Am I missing something? I'm pretty sure that the .java and .xml have the right structure, and the manifest too.

This happens sometimes when pushing a new version of your app to the device or emulator, when the old version is swapped with the new version. During that time, the package is not available, and this 'crash' occurs.
This is nothing to worry about, as this scenario will not occur in 'real life' (assuming Play Store updates are handled more gracefully, as I've never seen these crashes there).