Unable to instantiate activity

Hi there,

I'm trying to integrate an app with T55 scanner, however, when I try to launch my app, it crashes with error:

 

 

 

2763-2763/? E/com.amazon.XXX.mobile﹕ java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.amazon.XXX.YYY.ZZZ/com.amazon.XXX.YYY.ZZZ.ui.activity.LoginActivity}: java.lang.ClassNotFoundException: Didn't find class "com.amazon.XXX.YYY.ZZZ.activity.LoginActivity" on path: DexPathList[[zip file "/system/framework/com.symbol.emdk.jar", zip file "/data/app/com.amazon.XXX.YYY.AMAZONAPP-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.amazon.XXX.YYY.AMAZONAPP-2, /vendor/lib, /system/lib]]

            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2116)

            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2239)

            at android.app.ActivityThread.access$800(ActivityThread.java:141)

            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1202)

            at android.os.Handler.dispatchMessage(Handler.java:102)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5045)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

            at dalvik.system.NativeStart.main(Native Method)

     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.amazon.XXX.YYY.ZZZ.activity.LoginActivity" on path: DexPathList[[zip file "/system/framework/com.symbol.emdk.jar", zip file "/data/app/com.amazon.XXX.YYY.AMAZONAPP-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.amazon.XXX.YYY.AMAZONAPP-2, /vendor/lib, /system/lib]]

            at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

            at java.lang.ClassLoader.loadClass(ClassLoader.java:497)

            at java.lang.ClassLoader.loadClass(ClassLoader.java:457)

            at android.app.Instrumentation.newActivity(Instrumentation.java:1061)

            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2107)

            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2239)

            at android.app.ActivityThread.access$800(ActivityThread.java:141)

            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1202)

            at android.os.Handler.dispatchMessage(Handler.java:102)

            at android.os.Looper.loop(Looper.java:136)

            at android.app.ActivityThread.main(ActivityThread.java:5045)

            at java.lang.reflect.Method.invokeNative(Native Method)

            at java.lang.reflect.Method.invoke(Method.java:515)

            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)

            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)

            at dalvik.system.NativeStart.main(Native Method)

08-04 21:29:52.641    2763-2763/? W/System.err﹕ Aug 4, 2015 9:29:52 PM com.amazon.XXX.mobile.core.L e

08-04 21:29:52.641    2763-2763/? W/System.err﹕ SEVERE:

08-04 21:29:52.641    2763-2763/? W/System.err﹕ Throwable occurred: java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.amazon.XXX.YYY.ZZZ/com.amazon.XXX.YYY.ZZZ.ui.activity.LoginActivity}: java.lang.ClassNotFoundException: Didn't find class "com.amazon.XXX.YYY.ZZZ.ui.activity.LoginActivity" on path: DexPathList[[zip file "/system/framework/com.symbol.emdk.jar", zip file "/data/app/com.amazon.XXX.YYY.AMAZONAPP-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.amazon.XXX.YYY.AMAZONAPP-2, /vendor/lib, /system/lib]]

 

 

I tried to follow the instructions at https://portal.motorolasolutions.com/Support/US-EN/Resolution?solutionId=96043&redirectForm=search&searchQuery=%3Fsearch… to run the EnterpriseEnabler APK, however, after reboot, there is no 'Enterprise Mode' item in Settings > About Phone > SW components.

Is there a detailed wiki page on how (and where) to download & install the latest EnterpriseEnabler APK?

BTW, I can't run any of the sample applications, and got the same/similar error.