Missing Target Platforms

Under my Project Settings in Supported Platforms I have All Platforms selected. It contains Desktop (Win+Mac+Linux) and Windows (32-bit). However under FIle>Package Project those two options are missing.

I have the same problem too. I want build for Mac but i can’t find Mac option in Project launcher.

If you are on Windows, you can’t build to Mac and if you are on Mac, you can’t build to Windows.