Błąd gradle - Wykonanie nie powiodło się dla zadania ": app: dexDebug"

Question

Próbuję dodać bibliotekę MPAndroidChartLibrary do mojego projektu Android Studio, jednak gdy próbuję uruchomić aplikację, nadal występuje błąd 1. Nie jestem zbyt dobry w gradle, więc nie wiem, co jest nie tak.

Mój plik Gradle jest taka:

apply plugin: 'com.android.application' 

android { 
    compileSdkVersion 21 
    buildToolsVersion "21.0.2" 

    defaultConfig { 
     applicationId "com.bacon.corey.audiotimeshift" 
     minSdkVersion 16 
     targetSdkVersion 21 
     versionCode 1 
     versionName "1.0" 
    } 
    buildTypes { 
     release { 
      runProguard false 
      proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 
     } 
    } 
} 

repositories { 
    flatDir { 
     dirs 'libs' 
    } 
} 

dependencies { 
    compile fileTree(dir: 'libs', include: ['*.jar']) 
    compile 'com.android.support:appcompat-v7:21.0.0' 
    compile 'com.nineoldandroids:library:2.4.0' 
    compile 'com.android.support:support-v4:21.0.0' 
    compile 'com.android.support:support-v4:21.0.0' 
    compile files('C:/Users/Corey/.AndroidStudioBeta/Projects/AudioTimeShift/libraries/mpandroidchartlibrary-1-7-4.jar') 
} 

O ile widzę, to wszystko powinno być w porządku, ale to nie działa. Jest to log z konsoli Gradle:

:app:preBuild 
:app:compileDebugNdk UP-TO-DATE 
:app:preDebugBuild 
:app:checkDebugManifest 
:app:preReleaseBuild 
:app:prepareComAndroidSupportAppcompatV72100Library UP-TO-DATE 
:app:prepareComAndroidSupportSupportV42100Library UP-TO-DATE 
:app:prepareDebugDependencies 
:app:compileDebugAidl UP-TO-DATE 
:app:compileDebugRenderscript UP-TO-DATE 
:app:generateDebugBuildConfig UP-TO-DATE 
:app:generateDebugAssets UP-TO-DATE 
:app:mergeDebugAssets UP-TO-DATE 
:app:generateDebugResValues UP-TO-DATE 
:app:generateDebugResources UP-TO-DATE 
:app:mergeDebugResources UP-TO-DATE 
:app:processDebugManifest UP-TO-DATE 
:app:processDebugResources UP-TO-DATE 
:app:generateDebugSources UP-TO-DATE 
:app:compileDebugJava 
Note: C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\src\main\java\com\bacon\corey\audiotimeshift\MainActivity.java uses or overrides a deprecated API. 
Note: Recompile with -Xlint:deprecation for details. 
Note: Some input files use unchecked or unsafe operations. 
Note: Recompile with -Xlint:unchecked for details. 
:app:preDexDebug 
:app:dexDebug 
UNEXPECTED TOP-LEVEL EXCEPTION: 
Error:Execution failed for task ':app:dexDebug'. 
> com.android.ide.common.internal.LoggedErrorException: Failed to run command: 
    C:\Program Files (x86)\Android\android-sdk\build-tools\21.0.2\dx.bat --dex --output C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\dex\debug C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\classes\debug C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\dependency-cache\debug C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\classes-08104da82547c1da8de562eb9350a514962ceaa7.jar C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\classes-c916341f097aba848a3f8d1cb524d87b40a5e434.jar C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\internal_impl-21.0.0-dd323fb38f6f05cc36bfccaf6824e44b4d16534e.jar C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\library-2.4.0-1028d824e09b12c83da4be3e497c82fdc33874f5.jar C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\mpandroidchartlibrary-1-7-4-1e0626ccaecee3e156334e8c3c9fcf07d352edb9.jar C:\Users\Corey\.AndroidStudioBeta\Projects\AudioTimeShift\app\build\intermediates\pre-dexed\debug\support-annotations-21.0.0-9528452d0a4563476596d64e06f21a3014c413f7.jar 
Error Code: 
    2 
Output: 
    UNEXPECTED TOP-LEVEL EXCEPTION: 
    com.android.dex.DexException: Multiple dex files define Lcom/nineoldandroids/animation/ValueAnimator$AnimatorUpdateListener; 
     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:302) 
     at com.android.dx.command.dexer.Main.run(Main.java:245) 
     at com.android.dx.command.dexer.Main.main(Main.java:214) 
     at com.android.dx.command.Main.main(Main.java:106) 
Information:BUILD FAILED 
Information:Total time: 18.241 secs 
Information:1 error 
Information:0 warnings 
Information:See complete output in console 

Jeśli ktoś może proszę mi dać kilka wskazówek co do tego, gdzie jestem nie tak, byłbym immensively wdzięczny.

Dzięki Corey B :)

Answer 1

MPAndroidChart już com.nineoldandroids:library:2.4.+ jako zależność. Usuń compile 'com.nineoldandroids:library:2.4.0' ze swoich zależności.