Android dev - APK builder failed

Hello,

I've got the following error in the console when trying to build a very basic scene for android.

 C:\Users\me\Documents\test android1\Temp\StagingArea>INDX( 
 'INDX' is not recognized as an internal or external command,
 operable program or batch file.
 
 UnityEngine.Debug:LogError(Object)
 PostProcessAndroidPlayer:BuildApk(String, Boolean, Boolean) (at C:/BuildAgent/work/14194e8ce88cdf47/Editor/Mono/BuildPipeline/PostProcessAndroidPlayer.cs:1030)
 PostProcessAndroidPlayer:PostProcess(BuildTarget, String, String, String, String, String, String, BuildOptions) (at C:/BuildAgent/work/14194e8ce88cdf47/Editor/Mono/BuildPipeline/PostProcessAndroidPlayer.cs:456)
 UnityEditor.HostView:OnGUI()

I've installed the android SDK, along with the latest android API and tools, and everything seems to be fine on that part...

I've googled without any success... I someone can help me... Thanks!

Nicolas.