Unable to look up screen scale and Unexpected physical screen orientation in Xcode 10

Question

I have recently updated Xcode to version 10, and now my console displays:

MyApp[1618:133310] [AXMediaCommon] Unable to look up screen scale
MyApp[1618:133310         


        

Answer 1

I got the issue, when I was running on iOS 12.2 and MacOS Majove (Version 10.14.4) Just change to iOS 11.4 and everything working perfectly.

Answer 2

I've met the same problem. Finally I find out that this is because I accidentally resize the simulator's screen using my mouse cursor. By quiting and restarting the simulator my problem is solved.

Hope the aforementioned information helps.

Answer 3

It could sounds dummy, but these warning appeared me after move the simulator previously rendered from the Macbook screen, to a wider external screen.

I solved it just restarting the simulator in the external screen. My 2 cents.

Answer 4

I encountered this issue after running some UITest from a gitlab-runner.

The simulator got into this state and the only way to solve it was to go to Hardware -> Erase all content and settings

Answer 5

This won't answer your original question, but it might relieve your eyes. A caveat to this answer however is that it disables all NSLog statements.

Do the following to suppress - all NSLog statements including - the warning: Unable to look up screen scale:

In Xcode, go to Product - Scheme - Edit Scheme, select 'Run' on the left side ...

... and add OS_ACTIVITY_MODE with value "disable" in the Environment variables section.

Answer 6

Resizing the simulator's screen size to actual device size resolved this for me:

Cmd+1 is the shortcut.