iOS Build Failed at compile time with issue “failed to find a suitable device for the type SimDeviceType”

Question

I am getting following compile time issue when running the app with Xcode 10.3 beta 2 on iPad Air, I am getting the below issue.

Failed to find a suitable de         


        

Answer 1

I just ran into the same issue on the latest Xcode 10.3 (10G8). Had to perform about 4 or 5 full project cleans, and bounce the box, before I could compile again. I wish Apple would get this fixed.

Answer 2

I simply had to disconnect the iPad I had connected to my Mac. For some reason that was messing with the way Xcode was compiling.

Answer 3

Getting same issue but after an hour getting success to fix this issue there is xcode problem. So please reopen your xcode and then clean your project.. or use short cut command for clear (command + shift + option + k)

Answer 4

It seemes like the old simulator process remained open in the background during an XCode update.

Simply running

sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

in terminal may solve the problem.
There shouldn't be a need for cleaning the project and/or build folder.

Answer 5

I was experiencing the same problem. In my case, I had launched the Simulator from a previous version of Xcode prior to building. The problem persisted when I quit the simulator, but restarting Xcode solved it for me.

Answer 6

If you quit Xcode and still get the same error, then try clean (command + shift + option + k) and select option "Clean" in popup. Repeat this 2 to 3 times. It works in my case.