android export dex failed error

Hi, i have been trying to figure out for days now why i cannot export qualcomm AR application from their standard package to my samsung galaxy 10.1 device without cause the following error:

Building DEX Failed!

C:\Softs Projects Documents\Unity3D\Unity3D_Android_XX6\Temp/StagingArea> java -Xmx1024M -Djava.ext.dirs="C:/Development/Android/android-sdk-windows\platform-tools/lib/" -jar "C:/Development/Android/android-sdk-windows\platform-tools/lib/dx.jar" --dex --verbose --output=bin/classes.dex bin/classes.jar plugins

Error occurred during initialization of VM

Could not reserve enough space for object heap

Could not create the Java virtual machine.

UnityEngine.Debug:LogError(Object)

PostProcessAndroidPlayer:BuildDex(String, String, Single, Single&) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPipeline/PostProcessAndroidPlayer.cs:573)

PostProcessAndroidPlayer:PostProcess(BuildTarget, String, String, String, String, String, String, BuildOptions) (at C:/BuildAgent/work/842f9557127e852/Editor/Mono/BuildPipeline/PostProcessAndroidPlayer.cs:166)

UnityEditor.HostView:OnGUI()

For the very few forums that i read on this issue we need to have the latest java installed which it is.Otherwise there is not much to say if only that i can export standard android application with no AR features attached to it.

Can someone help.

Tks

Rick