android_core compilation error

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I m trying to compile android_core stack. first I ran the command

android update project --path ./android_gingerbread_mr1 --target android-13

after this running ./gradelw debug causes the following error

-pre-compile:

-compile:
    [javac] Compiling 40 source files to /home/pragyan/Techiome/android_core/android_honeycomb_mr2/bin/classes
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/layer/CompressedBitmapLayer.java:40: package compressed_visualization_transport_msgs does not exist
    [javac]     SubscriberLayer<compressed_visualization_transport_msgs.CompressedBitmap> implements TfLayer {
    [javac]                                                            ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/layer/CompressedBitmapLayer.java:83: package compressed_visualization_transport_msgs does not exist
    [javac]   void update(compressed_visualization_transport_msgs.CompressedBitmap compressedBitmap) {
    [javac]                                                      ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/VisualizationView.java:67: cannot find symbol
    [javac] symbol  : constructor FrameTransformTree()
    [javac] location: class org.ros.rosjava_geometry.FrameTransformTree
    [javac]     frameTransformTree = new FrameTransformTree();
    [javac]                          ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/VisualizationView.java:126: cannot find symbol
    [javac] symbol  : method setPrefix(java.lang.String)
    [javac] location: class org.ros.rosjava_geometry.FrameTransformTree
    [javac]       frameTransformTree.setPrefix(tfPrefix);
    [javac]                         ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/layer/CompressedBitmapLayer.java:70: package compressed_visualization_transport_msgs does not exist
    [javac]     Subscriber<compressed_visualization_transport_msgs.CompressedBitmap> subscriber =
    [javac]                                                       ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/layer/CompressedBitmapLayer.java:74: package compressed_visualization_transport_msgs does not exist
    [javac]         .addMessageListener(new MessageListener<compressed_visualization_transport_msgs.CompressedBitmap>() {
    [javac]                                                                                        ^
    [javac] /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/layer/CompressedBitmapLayer.java:77: package compressed_visualization_transport_msgs does not exist
    [javac]               compressed_visualization_transport_msgs.CompressedBitmap compressedBitmap) {
    [javac]                                                      ^
    [javac] Note: /home/pragyan/Techiome/android_core/android_honeycomb_mr2/src/org/ros/android/view/visualization/VisualizationView.java uses or overrides a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] 7 errors

BUILD FAILED
/home/pragyan/Techiome/android-sdk-linux/tools/ant/build.xml:680: The following error occurred while executing this line:
/home/pragyan/Techiome/android-sdk-linux/tools/ant/build.xml:693: Compile failed; see the compiler error output for details.

Total time: 3 seconds

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':android_honeycomb_mr2:debug'.
> Command 'ant' finished with (non-zero) exit value 1.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Any solutions?

Thanks in advance :)