I am using these configuration to launh app on my real ios device. iPhone X is the name of my real device, am I using it the wrong way? Because I keep on getting this error,

Could not launch run task

Is this the only message you get in build console? are there any errors reported in notification centre in top right corner?

Nope, that's all I get when I click run for this configuration

Does the auto-generated run configuration work for you to run app on simulator?

Yep it does, in fact I copied this configuration from the default one, just changed the name and destination.

and did you get the destination autocompleted?

Nope, I filled it in..

you should be able to get them auto-completed in smart mode, do you get any names suggested in the situation like mine (you can ask for completion explicitly but it should be triggered automatically as well)