[Android-development] Need help: fail to lauch qt5 program in android emulator

[Liang Jian]

    Hello everyone, I am recently doing some reseach about Qt5-android,
For now I can't launch qt5 program in QtCreator 3.0, I have successfully
built the latest qt5 source for android, I got the latest release branch
source using git which is nearly the same as qt5.2 official release and I
am using ubuntu 12.04 to build it using the following command:

    ./configure --prefix=../../qt5-sdk-android-arm-debug -developer-build
-xplatform android-g++ -nomake tests -nomake examples -android-ndk
/home/jianliang/android/android-ndk-r9c -android-sdk
/home/jianliang/android/android-sdk-linux -android-ndk-host linux-x86_64
-android-toolchain-version 4.8 -skip qttranslations -skip qtwebkit -skip
qtserialport -skip qtwebkit-examples -skip qtquick1 -skip qt3d -skip
qtjsondb -skip qtsystems -skip qtwayland -no-warnings-are-errors -D
QT_OPENGL_FORCE_SHADER_DEFINES
    make -j 4
    make install

    After building has finished, qt5 will be installed to
/home/jianliang/qt5-sdk-android-arm-debug, then I open qtcreator 3.0 to
configure android related options:
    Android Configurations: /home/jianliang/android/android-sdk-linux
    Android NDK location:  /home/jianliang/android/android-ndk-r9c
    Ant location: /usr/bin/ant
    JDK location: /usr/lib/jvm/java-6-openjdk

    Then I add a Qt Version using the qmake located in
/home/jianliang/qt5-sdk-android-arm-debug/bin/qmake and add a build kit
using the qt version I have created, every thing looks fine.
    To test qt android I open an example project such as
qtdeclarative/examples/quick/scenegraph/textureinthread/textureinthread.pro,
I build it without any problem and the libtextureinthread.so was
successfully generated, but when I press Run button to lauch the program it
failed, the log message says:

BUILD FAILED

/home/jianliang/android/android-sdk-linux/tools/ant/build.xml:653: The
following error occurred while executing this line:

/home/jianliang/android/android-sdk-linux/tools/ant/build.xml:698: null
returned: 127


Total time: 2 seconds

Building the android package failed!

 -- For more information, run this command with --verbose.

    It seems that the android package build process has failed due to
something related to ant, I use ant shipped with ubuntu 12.04, I don't know
what is wrong with my configuration, I need some help, thanks!
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