android_app_chooser build error
I followed this article. http://www.ros.org/wiki/ApplicationsPlatform/Clients/Android
When I did 'rosmake android_app_chooser', I got the error message as below.
How can I solve this problem?
BUILD FAILED
/opt/rocon_elec/android/android_gingerbread/build.xml:4: The following error occurred while executing this line:
/opt/rocon_elec/rosjava_core/rosjava_bootstrap/android.xml:46: taskdef class com.android.ant.AaptExecLoopTask cannot be found
using the classloader AntClassLoader[/opt/android-sdk-linux/tools/lib/anttasks.jar:/opt/android-sdk-linux/tools/lib/common.jar:/opt/android-sdk-linux/tools/lib/sdklib.jar:/opt/android-sdk-linux/tools/lib/androidprefs.jar:/opt/android-sdk-linux/tools/lib/mkidentity.jar:/opt/android-sdk-linux/tools/lib/commons-compress-1.0.jar:/opt/android-sdk-linux/tools/lib/httpclient-4.1.1.jar:/opt/android-sdk-linux/tools/lib/httpcore-4.1.jar:/opt/android-sdk-linux/tools/lib/httpmime-4.1.1.jar:/opt/android-sdk-linux/tools/lib/commons-logging-1.1.1.jar:/opt/android-sdk-linux/tools/lib/commons-codec-1.4.jar]
build environment :
ubuntu 11.04 natty
Ant 1.8.1
android SDK : android-sdk_r14-linux.tgz