Failed to repackage resources

Here's my LOG!! Please help me... please help

CommandInvokationFailure: Failed to re-package resources. C:\Program Files\Android\build-tools\23.0.3\aapt.exe package --auto-add-overlay -v -f -m -J "gen" -M "AndroidManifest.xml" -S "res" -I "C:/Program Files/Android\platforms\android-23\android.jar" -F bin/resources.ap_ --extra-packages com.chartboost.sdk.unity:com.unity3d.ads -S "C:\Users\Magbanua\Desktop\AngeloFiles\Unity3d Games\ARCONTROLLER\Temp\StagingArea\android-libraries\UnityAds\res"

stderr[ AndroidManifest.xml:16: error: Error: No resource found that matches the given name (at 'value' with value '@integer/google_play_services_version').

] stdout[ Configurations: (default)

Files: AndroidManifest.xml Src: () AndroidManifest.xml

Resource Dirs: Including resources from package: C:\Program Files\Android\platforms\android-23\android.jar applyFileOverlay for drawable trying overlaySet Key=app_banner.png trying overlaySet Key=app_icon.png applyFileOverlay for layout applyFileOverlay for anim applyFileOverlay for animator applyFileOverlay for interpolator applyFileOverlay for transition applyFileOverlay for xml applyFileOverlay for raw applyFileOverlay for color applyFileOverlay for menu applyFileOverlay for mipmap Processing image: res\drawable-xhdpi\app_banner.png Processing image: res\drawable-mdpi\app_icon.png (processed image res\drawable-mdpi\app_icon.png: 94% size of source) (processed image res\drawable-xhdpi\app_banner.png: 93% size of source) (new resource id app_banner from xhdpi-v4\drawable\app_banner.png #generated) (new resource id app_icon from mdpi-v4\drawable\app_icon.png #generated) ] exit code: 1 UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) UnityEditor.Android.PostProcessor.Tasks.TasksCommon.Exec (System.String command, System.String args, System.String workingdir, System.String errorMsg, Int32 retriesOnFailure) UnityEditor.HostView:OnGUI()