I am running Version 15.4 (15F31d). Yesterday I installed an update, opened XCode again and there was a message like “Simulator needs update”. I clicked OK, nothing happened. Now, all my simulators are gone, and I cannot get them back. I restarted XCode already as well as my computer.

Here, before I installed the updated, I was able to select different simulators

This is how it looks like when I click on “Manage Run Destinations…”. All of them have the selection “Show run destination: Always”

Under the Product - Destination menu I have Show all run destinations selected.

What I do not understand is, that I can start the Simulator App

But XCode does not recognize any simulator…