Yun problem with IDE Ports

I have Arduino YUN and am trying to install the 'temperature-web-panel' project.
With Yun connected to my PC(Ubuntu) there is an available port tty....
The project requires for the sketch to be uploaded via wifi. With the Yun powered up but not connected to the PC the ports menu is greyed-out.
I'm using IDE V1.8.19.
ifconfig shows 'wlp2s0' is running.
I've looked at many posts but don't see anything that helps.
Any help with this would be welcome.

I should have said that the Yun had been running continuously as a data logger (counting flashes on the electricity meter). The problem may have been caused by my experimenting with an ESP0. I have completely reset the Yun and have run the YunFirstConfig sketch, changed the name and password.

Still unable to upload a sketch over WIFI because the 'Port' menu is still greyed-out

Over the USB ran sketch YunFirstConfig and completely re-configured the YUN.
The using a web page completed the setup.
Can now upload sketches over WIFI

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