Please help me!! Gradle Build failed : Information:Gradle tasks [:app:assembleDebug]

C:\Users\davis\AndroidStudioProjects\tester\app\src\main\res\values\dimens.xml

Error:Error: Found item Dimension/abc_alert_dialog_button_bar_height more than one time

Error:Execution failed for task ':app:mergeDebugResources'.
> C:\Users\davis\AndroidStudioProjects\tester\app\src\main\res\values\dimens.xml: 

Error: Found item Dimension/abc_alert_dialog_button_bar_height more than one time

Information:BUILD FAILED

Information:Total time: 6.044 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console


please suggest me any IDE or a Solution...