Briefcase java extension

**What is the problem? Briefcase doesn't work on my device
I think need to download java extension
Any help please.

Many Thanks

Hi, @Saleem_Alghlailat.

Briefcase needs Java to run. Could you copy here what happens if you run this command from a terminal?

java -version

You can open a terminal in Windows by launching the app "cmd.exe", or in Mac/Linux launching the app "Terminal".