Android QWidget app displays "application encountered a fatal error" after starting emulator?

[EdOfTheMountain]

Android newbie here.

I used Qt 5.3.1 to make a simple "Hello World" Qt widgets application containing a single button. It runs on Windows, OS X, and iOS simulators.

When I debug application on my x86 Atom on an Nexus 7 Android Virtual Device emulator, the "Hello World" title bar appears. The main screen below remains black. One minute later the following popup displays. Closing popup results in title bar disappearing:

"Your application encountered a fatal error and cannot continue"

All troubleshooting tips are appreciated.

The AVD runs a Java app from Eclipse ADT just fine:

• AVD Target: Android 4.0.3 - API Level 15
• AVD CPU/ABI: Intel Atom (x86)
• AVD Memory: RAM: 2048, VM HEAP: 64
• AVD SD Card: Size 32 MiB

1 - Could it be a libQT*.so dependency issue? How does Qt Creator auto-magically deploy libQT*.so dependencies to the AVD?

2 - How do you debug Qt on an Android AVD? Is there a log file someplace?

Thanks in advance,

-Ed

Host Machine: OSX 10.9.4
QT 5.3.1

[EdOfTheMountain]

I figured out to make Eclipse show me Android->LogCat view.

I see the following FATAL EXCEPTION appear in LogCat near the time the error appears:

LogCat displays sleep and pong messages for about a minute:
@
07-18 09:53:16.609: I/Qt JAVA(1671): DEBUGGER: go to sleep
07-18 09:53:16.819: I/Qt JAVA(1671): DEBUGGER: waiting for pong at /data/local/tmp/qt/debug-pong-org.qtproject.example.qt_android_hello, attempt 147
07-18 09:53:16.819: I/Qt JAVA(1671): DEBUGGER: go to sleep
07-18 09:53:17.028: I/Qt JAVA(1671): DEBUGGER: waiting for pong at /data/local/tmp/qt/debug-pong-org.qtproject.example.qt_android_hello, attempt 148
07-18 09:53:17.028: I/Qt JAVA(1671): DEBUGGER: go to sleep
07-18 09:53:17.229: I/Qt JAVA(1671): DEBUGGER: waiting for pong at /data/local/tmp/qt/debug-pong-org.qtproject.example.qt_android_hello, attempt 149
07-18 09:53:17.229: I/Qt JAVA(1671): DEBUGGER: go to sleep
07-18 09:53:17.439: I/Qt JAVA(1671): DEBUGGER: time out when waiting for pong file
@
Then after a minute the following exception appears in LogCat and fatal error message display in Android emulator:
@
07-18 09:53:17.439: W/System.err(1671): java.lang.Exception:
07-18 09:53:17.439: W/System.err(1671): at org.qtproject.qt5.android.bindings.QtActivity.loadApplication(QtActivity.java:254)
07-18 09:53:17.439: W/System.err(1671): at org.qtproject.qt5.android.bindings.QtActivity.startApp(QtActivity.java:644)
07-18 09:53:17.439: W/System.err(1671): at org.qtproject.qt5.android.bindings.QtActivity.onCreate(QtActivity.java:875)
07-18 09:53:17.439: W/System.err(1671): at android.app.Activity.performCreate(Activity.java:4465)
07-18 09:53:17.439: W/System.err(1671): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
07-18 09:53:17.439: W/System.err(1671): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
07-18 09:53:17.439: W/System.err(1671): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
07-18 09:53:17.439: W/System.err(1671): at android.app.ActivityThread.access$600(ActivityThread.java:123)
07-18 09:53:17.439: W/System.err(1671): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
07-18 09:53:17.439: W/System.err(1671): at android.os.Handler.dispatchMessage(Handler.java:99)
07-18 09:53:17.439: W/System.err(1671): at android.os.Looper.loop(Looper.java:137)
07-18 09:53:17.439: W/System.err(1671): at android.app.ActivityThread.main(ActivityThread.java:4424)
07-18 09:53:17.439: W/System.err(1671): at java.lang.reflect.Method.invokeNative(Native Method)
07-18 09:53:17.439: W/System.err(1671): at java.lang.reflect.Method.invoke(Method.java:511)
07-18 09:53:17.439: W/System.err(1671): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
07-18 09:53:17.439: W/System.err(1671): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
07-18 09:53:17.439: W/System.err(1671): at dalvik.system.NativeStart.main(Native Method)
07-18 09:53:17.449: D/dalvikvm(1671): GC_CONCURRENT freed 490K, 5% free 12784K/13319K, paused 0ms+1ms
07-18 09:53:17.449: D/libEGL(1671): loaded /system/lib/egl/libGLES_android.so
07-18 09:53:17.449: D/libEGL(1671): loaded /system/lib/egl/libEGL_emulation.so
07-18 09:53:17.449: D/(1671): HostConnection::get() New Host Connection established 0x94fb000, tid 1671
07-18 09:53:17.459: D/libEGL(1671): loaded /system/lib/egl/libGLESv1_CM_emulation.so
07-18 09:53:17.459: D/libEGL(1671): loaded /system/lib/egl/libGLESv2_emulation.so
07-18 09:53:17.468: W/EGL_emulation(1671): eglSurfaceAttrib not implemented
07-18 09:53:17.468: D/OpenGLRenderer(1671): Enabling debug mode 0
07-18 09:53:17.479: W/EGL_emulation(1671): eglSurfaceAttrib not implemented
07-18 09:53:17.519: D/(784): HostConnection::get() New Host Connection established 0x8b656c0, tid 1042
07-18 09:53:17.529: I/ActivityManager(876): Displayed org.qtproject.example.qt_android_hello/org.qtproject.qt5.android.bindings.QtActivity: +32s46ms
07-18 09:53:17.539: W/NetworkManagementSocketTagger(876): setKernelCountSet(10012, 0) failed with errno -2

@

[EdOfTheMountain]

Does Qt 5.3.1 widget apps work with Android? Should roll-back to Qt 5.2.1?

The messages following the exception refer to QtActivity. Is that a useful clue or just means it crashed shortly after starting?

-Ed