ah ha, I am literally going through the first project tutorial as I type, but noticed the same thing. How I fixed it was go to tools->project launcher and hit the launch this profile button
[icon with controller in front of a screen.]
it then tried to go through the process, but gave me more detailed information about a missing .net core SDK that was not installed.
I selected the line that mentioned the url, copied it into a browser and installed the desktop SDK and retried the process.
Now when I look in the package content, I can see the SDK
If that doesn’t solve the issue – I have no idea.
Cheers
John