Xcode not supported for iOS 11.3 by Xcode 9.2 needed 9.3

Question

Apparently, with the latest IOS update, my version of Xcode could not build due to the following error.

Could not locate device support files. This iPhone

Answer 1

I just give you a device support file for iOS 11.4 (15F79). which just on XCode version 9.4 (9F1027a)

Updated on 5 Oct 2018:

• Xcode 10.0 (10A255) - iOS 12.0 (16A366) [Updated 21 Sep: @Nik Burns confirmed that works]
• Xcode 10.1 beta 2 (10O35n) - iOS 12.1 (16B5068g) [Please give me feedback if that works]

Answer 2

I recently stumbled upon the same problem, where I basically updated my iPhone X to the newest OS version, and (for reasons I will not go into) had to run the app on Xcode 9.2.

This thread was helpful, but there's one small caveat that even though I downloaded the newest support files from the provided Github project, and put them in the appropriate folder, I was still getting this error:

Say for example you’ve downloaded 11.4 (15F79) but after restarting and running again you get an error mentioning something like 11.4.1 (15G77).

The solution, as I wrote here, was to just rename the folder (so, rename 11.4 (15F79) to 11.4.1 (15G77)), restart Xcode and voila, it works!

Hope this helps someone

Answer 3

please add both of "11.3 (15E216)" and "11.3 (15E217)" keep all of them inside /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform

Answer 4

Another option is to download the 11.3 device support at:

iOS 11.3 (15E217)

And don't forget to remove "(15E217)" from folder name, so it became "11.3". Restart Xcode afterwards.

Where to paste it according to comment of EdwardM

For those that don't know where to paste the contents of the zipped file. Find your Applications icon in the dock, right-click, "Open Applications". The folder will open in Finder. Right-click Xcode > Show Package Contents. Then go to Developer > Platforms > iPhoneOS.platform > DeviceSupport

Answer 5

1. I have macOS 10.13.4

2. I downloaded Xcode 9.3

3. Here you have the "11.3 (15E217)" it's work fine.

Answer 6

Quicker/Smaller Fix

This is probably due to outdated Xcode, if you don't want a big Xcode update due to limited storage/time then you can manually download the required support files instead of the whole update.

1. Download the files (depend on iOS veersion) from here
2. And then paste the downloaded files in below directory /Applications/Xcode/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport