3240 - Android Build UNEXPECTED TOP-LEVEL EXCEPTION

[Pedro_O_]

Hello everyone,
I am getting an exception when I try to build my Android app:

:preDexArmv7Release

:dexArmv7Release
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Landroid/support/annotation/AnimRes;
	at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
	at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
	at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
	at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
	at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
	at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:454)
	at com.android.dx.command.dexer.Main.runMonoDex(Main.java:303)
	at com.android.dx.command.dexer.Main.run(Main.java:246)
	at com.android.dx.command.dexer.Main.main(Main.java:215)
	at com.android.dx.command.Main.main(Main.java:106)

 FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':dexArmv7Release'.
> com.android.ide.common.internal.LoggedErrorException: Failed to run command:
  	.../android-sdk/build-tools/21.1.2/dx --dex --output .../cartaobrbapp/platforms/android/build/intermediates/dex/armv7/release --input-list=.../cartaobrbapp/platforms/android/build/intermediates/tmp/dex/armv7/release/inputList.txt
  Error Code:
  	2
  Output:
  	
  	UNEXPECTED TOP-LEVEL EXCEPTION:
  	com.android.dex.DexException: Multiple dex files define Landroid/support/annotation/AnimRes;
  		at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:596)
  		at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:554)
  		at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:535)
  		at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
  		at com.android.dx.merge.DexMerger.merge(DexMerger.java:189)
  		at com.android.dx.command.dexer.Main.mergeLibraryDexBuffers(Main.java:454)
  		at com.android.dx.command.dexer.Main.runMonoDex(Main.java:303)
  		at com.android.dx.command.dexer.Main.run(Main.java:246)
  		at com.android.dx.command.dexer.Main.main(Main.java:215)
  		at com.android.dx.command.Main.main(Main.java:106)
  	


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

BUILD FAILED

Total time: 1 mins 30.787 secs

.../cartaobrbapp/platforms/android/cordova/node_modules/q/q.js:126
                    throw e;
                    ^
Error code 1 for command: .../cartaobrbapp/platforms/android/gradlew with args: cdvBuildRelease,-b,.../cartaobrbapp/platforms/android/build.gradle,--no-daemon
Command finished with error code 1: .../cartaobrbapp/platforms/android/cordova/build --release
ERROR building one of the platforms: Error: .../cartaobrbapp/platforms/android/cordova/build: Command failed with exit code 1
You may not have the required environment or OS to build this project
Error: .../cartaobrbapp/platforms/android/cordova/build: Command failed with exit code 1
    at ChildProcess.whenDone (.../cordova/cordova-cli/5.1.1/node_modules/cordova/node_modules/cordova-lib/src/cordova/superspawn.js:134:23)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:821:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)

Someone knows what is my problem?

[Pamela_H_Intel]

Pedro - please provide the full build log as an attachment (use the Attach Files To Post link at the bottom).