Installation android sdk


Installation problem

Hi , I’m totally new into moltin, I’m trying to integrate the sdk into android but I keep having errors on my gradle console.
Error:Unable to resolve dependency for ‘:app@debug/compileClasspath’: Could not find :android-sdk-[debug|release]
I’ve added de compile dependency : compile(name:‘android-sdk-[debug|release]’, ext:‘aar’)
but it doesnt work.
There is one step I can’t do which is :
"Once complete, add the .aar file into your libs folder from Moltin"
Where can I find the .aar file?