How to set Android package name


i am trying to build my first application. But how can i define the package name for my android apk?

I tried already to define “RootNamespace” in .unoproject but it themes not to work.

Thanks for help

I just found this and it worked for me

  "iOS": { 
    "BundleIdentifier": "no.ikke.BolavApp" 

  "Android" : { 
    "Package" : ""