Error "Could not find developer image file"

Question

When I try to run the application on the connected iPhone, I get the error message: “Could not find a disk image for developers”. I am not registered with Apple Developer now, but you will not need it in xcode 7. I just updated xcode to version 7.2.1 , and my iPhone (6 plus) works iOS 9.3

Answer 1

Xcode 7.2.1 currently only supports iOS 9.2

9.3 is in beta and requires Xcode 7.3, which is currently also in beta. You can download from the developer portal. You do not need to be a paid developer for this.

Answer 2

The easiest way is to upgrade your OS and Xcode, but if you have a reason to stick with Yosemite 10.10.5 Xcode 7.2.1, you can use this copy and insert the trick to make it work . Just download Xcode 7.3.1 GM seed and here are the files you need to copy and replace the old one.

• /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/version.plist
• /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
• /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/9.3 (13E230)

This work is for me.

Answer 3

To start a project from the latest version of Xcode to the latest iOS device, follow these steps:

Go to Finder → Applications → Right-click on the latest version of Xcode → select the contents of the package → Developer → Platforms → iPhoneOS.platform → DeviceSupport → Copy the latest version folder and paste it in the same place of your old Xcode, that is, in the DeviceSupport folder of your old Xcode.

Then restart Xcode.

Answer 4

Unlike running your project on a simulator, when you run it on a device, you need to make sure that your version of Xcode supports the beta version (most likely, it will not).

You can simply check your goal and click on the General tab. In the Deployment Information section, select the Target Deployment drop-down menu and you will see the versions supported by the Xcode version (as shown below):