When I type "ant debug" on Jenkins, I always get message like :

* [aapt] No changed resources. R.java and Manifest.java untouched.
* [dex] No new compiled code. No need to convert bytecode to dalvik format.
* [aapt] No changed resources or assets.
* [apkbuilder] No changes. No need to create apk.

The same command *from my local computer* against the same code from Eclipse does not output the messages above. And it always finds modified input and creates an apk with debug key correctly from command-line. My goal is to create an APK with debug key on Jenkins also. 

Any idea why "ant debug" is showing the output as following? Is there a way to force apkbuilder to create an apk? 

```
-code-gen:
[mergemanifest] No changes in the AndroidManifest files.
     [echo] Handling aidl files...
     [aidl] No AIDL files to compile.
     [echo] ----------
     [echo] Handling RenderScript files...
[renderscript] No RenderScript files to compile.
     [echo] ----------
     [echo] Handling Resources...
     [aapt] No changed resources. R.java and Manifest.java untouched.
     [echo] ----------
     [echo] Handling BuildConfig class...
[buildconfig] No need to generate new BuildConfig.

-pre-compile:

-compile:

-post-compile:

-obfuscate:

-dex:
      [dex] input:  /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/classes
      [dex] input: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/libs/Robotium.jar
      [dex] Using Pre-Dexed Robotium-764572c80737d765208bdb367579ac89.jar <- /Users/buildmaster/.jenkins/workspace/my-ci-job-name/libs/Robotium.jar
      [dex] No new compiled code. No need to convert bytecode to dalvik format.

-crunch:
   [crunch] Crunching PNG Files in source dir: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/res
   [crunch] To destination dir: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/res
   [crunch] Crunched 0 PNG files to update cache

-package-resources:
     [aapt] No changed resources or assets. Settings_Tests_New.ap_ remains untouched

-package:
[apkbuilder] No changes. No need to create apk.

-post-package:

-do-debug:
 [zipalign] Run cancelled: no changes to input file         /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/Settings_Tests_New-debug-unaligned.apk
     [echo] Debug Package: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/Settings_Tests_New-debug.apk
[propertyfile] Updating property file: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/build.prop
[propertyfile] Updating property file: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/build.prop
[propertyfile] Updating property file: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/build.prop
[propertyfile] Updating property file: /Users/buildmaster/.jenkins/workspace/my-ci-job-name/bin/build.prop

-post-build:

debug:

BUILD SUCCESSFUL

```