Xcode: Could not locate device support files

Question

Actually, there is a way. You just need to copy DeviceSupport folder for iOS 7.1 from Older Xcode to the new one. It's located in:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/7.1

If you don't have the 7.1 files anymore, you can download a previous version of XCode on https://developer.apple.com/download/more/, extract it, and then copy these files to following path

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/

Credit

I had a similar problem because the app store version was missing iOS 10.1 support in Xcode 8 and they haven't rolled an update yet. This caused the "Xcode: Could not locate device support files" problem. You can download the latest update https://developer.apple.com/download/ and it is more current and supports iOS 10.1 (14B72c).

I have Xcode 10.1 and I can not run my application on my device with 12.2 iOS version.

The easiest solution for me was:

1. Go with finder at Xcode location
2. Right Click -> Show Package Contents
3. Contents -> Developer -> Platforms -> iPhoneOS.platform -> DeviceSupport
4. Here you find a list of supported version. Choose the most recent one and copy(In my case was 12.1 (16B91))
5. Paste in the same folder(DeviceSupport) and call it with the version you need.(In my case was 12.2 (16E227))
6. Close Xcode if you have it open
7. Reconnect device if it was connected
8. Open Xcode and build

If this trick does not working, you have to get the versions from the new Xcode version.

But you can try, saves a lot of time. Good luck!

EDIT: Or you can download your needed device support from here: https://github.com/iGhibli/iOS-DeviceSupport/tree/master/DeviceSupport

You need device support from previous version of Xcode (7.3.1).

I would recommend to use this tool: https://github.com/KrauseFx/xcode-install

When you install Xcode 7, you should link support files to Xcode 8:

sudo ln -s /Applications/Xcode-7.3.1.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/7.* \
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/

This error is shown when your XCode is old and the related device you are using is updated to latest version. First of all, install the latest Xcode version.

We can solve this issue by following the below steps:-

1. Open Finder select Applications
2. Right click on Xcode 8, select "Show Package Contents", "Contents", "Developer", "Platforms", "iPhoneOS.Platform", "Device Support"
3. Copy the 10.0 folder (or above for later version).
4. Back in Finder select Applications again Right click on Xcode 7.3, select "Show Package Contents", "Contents", "Developer", "Platforms", "iPhoneOS.Platform", "Device Support" Paste the 10.0 folder

If everything worked properly, your XCode has a new developer disk image. Close the finder now, and quit your XCode. Open your Xcode and the error will be gone. Now you can connect your latest device to old Xcode versions.

Thanks