AirDroid fails to start on Kindle Fire

The adb error log shows a missing Log4j jar

```--------- beginning of crash
E/AndroidRuntime(10164): FATAL EXCEPTION: main
E/AndroidRuntime(10164): Process: com.sand.airdroid, PID: 10164
E/AndroidRuntime(10164): java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/log4j/Logger;
E/AndroidRuntime(10164): at com.sand.airdroid.ui.splash.SplashActivity.<init>(SplashActivity.java:72)
E/AndroidRuntime(10164): at com.sand.airdroid.ui.splash.SplashActivity_.<init>(SplashActivity_.java:23)
E/AndroidRuntime(10164): at java.lang.reflect.Constructor.newInstance(Native Method)
E/AndroidRuntime(10164): at java.lang.Class.newInstance(Class.java:1603)
E/AndroidRuntime(10164): at android.app.Instrumentation.newActivity(Instrumentation.java:1076)
E/AndroidRuntime(10164): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2267)
E/AndroidRuntime(10164): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2434)
E/AndroidRuntime(10164): at android.app.ActivityThread.access$800(ActivityThread.java:160)
E/AndroidRuntime(10164): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1320)
E/AndroidRuntime(10164): at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(10164): at android.os.Looper.loop(Looper.java:135)
E/AndroidRuntime(10164): at android.app.ActivityThread.main(ActivityThread.java:5466)
E/AndroidRuntime(10164): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(10164): at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime(10164): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:984)
E/AndroidRuntime(10164): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
E/AndroidRuntime(10164): Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.log4j.Logger" on path: DexPathList[[zip file "/data/app/com.sand.airdroid-1/base.apk", zip file "/data/data/com.sand.airdroid/code_cache/secondary-dexes/base.apk.classes2.zip", zip file "/data/data/com.sand.airdroid/code_cache/secondary-dexes/base.apk.classes3.zip"],nativeLibraryDirectories=[/data/app/com.sand.airdroid-1/lib/arm, /vendor/lib, /system/lib, /vendor/lib, /system/lib]]
E/AndroidRuntime(10164): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
E/AndroidRuntime(10164): ... 16 more
E/AndroidRuntime(10164): Suppressed: java.lang.ClassNotFoundException: org.apache.log4j.Logger
E/AndroidRuntime(10164): at java.lang.Class.classForName(Native Method)
E/AndroidRuntime(10164): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
E/AndroidRuntime(10164): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
E/AndroidRuntime(10164): ... 17 more
E/AndroidRuntime(10164): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
I/ActivityManager( 910): handleApplicationCrash
W/ActivityManager( 910): Force finishing activity 1 com.sand.airdroid/.ui.splash.SplashActivity_
I/[MALI][Gralloc]( 143): usage0: 0x333, format7: 1 stride2: 368 vertical_stride6: 360 size: 529920```

The adb error log shows a missing Log4j jar

```--------- beginning of crash
E/AndroidRuntime(10164): FATAL EXCEPTION: main
E/AndroidRuntime(10164): Process: com.sand.airdroid, PID: 10164
E/AndroidRuntime(10164): java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/log4j/Logger;
E/AndroidRuntime(10164): at com.sand.airdroid.ui.splash.SplashActivity.<init>(SplashActivity.java:72)
E/AndroidRuntime(10164): at com.sand.airdroid.ui.splash.SplashActivity_.<init>(SplashActivity_.java:23)
E/AndroidRuntime(10164): at java.lang.reflect.Constructor.newInstance(Native Method)
E/AndroidRuntime(10164): at java.lang.Class.newInstance(Class.java:1603)
E/AndroidRuntime(10164): at android.app.Instrumentation.newActivity(Instrumentation.java:1076)
E/AndroidRuntime(10164): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2267)
E/AndroidRuntime(10164): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2434)
E/AndroidRuntime(10164): at android.app.ActivityThread.access$800(ActivityThread.java:160)
E/AndroidRuntime(10164): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1320)
E/AndroidRuntime(10164): at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(10164): at android.os.Looper.loop(Looper.java:135)
E/AndroidRuntime(10164): at android.app.ActivityThread.main(ActivityThread.java:5466)
E/AndroidRuntime(10164): at java.lang.reflect.Method.invoke(Native Method)
E/AndroidRuntime(10164): at java.lang.reflect.Method.invoke(Method.java:372)
E/AndroidRuntime(10164): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:984)
E/AndroidRuntime(10164): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
E/AndroidRuntime(10164): Caused by: java.lang.ClassNotFoundException: Didn't find class "org.apache.log4j.Logger" on path: DexPathList[[zip file "/data/app/com.sand.airdroid-1/base.apk", zip file "/data/data/com.sand.airdroid/code_cache/secondary-dexes/base.apk.classes2.zip", zip file "/data/data/com.sand.airdroid/code_cache/secondary-dexes/base.apk.classes3.zip"],nativeLibraryDirectories=[/data/app/com.sand.airdroid-1/lib/arm, /vendor/lib, /system/lib, /vendor/lib, /system/lib]]
E/AndroidRuntime(10164): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
E/AndroidRuntime(10164): ... 16 more
E/AndroidRuntime(10164): Suppressed: java.lang.ClassNotFoundException: org.apache.log4j.Logger
E/AndroidRuntime(10164): at java.lang.Class.classForName(Native Method)
E/AndroidRuntime(10164): at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
E/AndroidRuntime(10164): at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
E/AndroidRuntime(10164): at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
E/AndroidRuntime(10164): ... 17 more
E/AndroidRuntime(10164): Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
I/ActivityManager( 910): handleApplicationCrash
W/ActivityManager( 910): Force finishing activity 1 com.sand.airdroid/.ui.splash.SplashActivity_
I/[MALI][Gralloc]( 143): usage0: 0x333, format7: 1 stride2: 368 vertical_stride6: 360 size: 529920```

Hi, would you pls try to update AirDroid on your device to v 4.0.0.4 or 4.0.0.5Beta and see if it can start?

I tried it with 4.0.0.4, where can I download 4.0.0.5Beta?

Update: Was able to download 4.0.0.5 from the play store, and it works!