我尝试连接库balancedpayments。为此，我写道：
dependencies {
compile 'com.balancedpayments:balancedpayments:1.4'
}
然后我点击同步gradle并且一切正常。但在我尝试运行错误输出之后：
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency commons-logging:commons-logging:1.1.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency commons-logging:commons-logging:1.1.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for release as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for release as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency commons-logging:commons-logging:1.1.1 is ignored for release as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency org.apache.httpcomponents:httpclient:4.2.1 is ignored for release as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
Warning:Dependency commons-logging:commons-logging:1.1.1 is ignored for release as it may be conflicting with the internal version provided by Android.
In case of problem, please repackage it with jarjar to change the class packages
:app:preBuild
:app:compileDebugNdk UP-TO-DATE
:app:preDebugBuild
:app:checkDebugManifest
:app:preReleaseBuild
:app:prepareComAndroidSupportAppcompatV72102Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42102Library 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: D:\skip\Customer\app\src\main\java\com\skip\client\customer\ScanActivity.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation 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:
D:\AndroidSDK\build-tools\21.0.2\dx.bat --dex --no-optimize --output D:\skip\Customer\app\build\intermediates\dex\debug --input-list=D:\skip\Customer\app\build\intermediates\tmp\dex\debug\inputList.txt
Error Code:
2
Output:
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Lorg/apache/commons/codec/Decoder;
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: 36.197 secs
Information:1 error
Information:10 warnings
Information:See complete output in console
我无法理解问题所在。请帮忙。