I'm having trouble with Xcode 16.2 when trying to pair or upload apps to my iPhone 16e running iOS 18.3. Interestingly, it works perfectly with older models like the iPhone 15 and 14, even though they’re on the same iOS version. When I attempt to install an app on my iPhone 16e via Xcode, I encounter this error:
The developer disk image could not be mounted on this device. (com.apple.dt. CoreDeviceError error 12040 (0x2F08)) DDIPath = /Library/Developer/DeveloperDiskImages/iOS_DDI. dmg DeviceIdentifier = 42E4BEC2-3B1E -4903-9A29-CC5C6363F677 Options = { MountedBundlePath = "file:///private/var/tmp/CoreDevice_DDI_Staging_501/42E4BEC2-3B1-4903-9A29-CC5C6363F677/*; UseCredentials = 0; } NSURL = file:///Library/Developer/DeveloperDiskImages/iOS_DDI.dmg ERROR: Error mounting image: 0x800010f (kAMDMobileImageMounterPersonalizedBundleMissingVariantError: The bundle image is missing the requested variant for this device.) (com. apple,mobiledevice error -402652913 (OxE800010F)) FunctionName = AMDeviceRemoteMountPersonalizedBundle LineNumber = 2145 ERROR: Failed to initialize image properties: 0x800010f (kAMDMobileImageMounterPersonalizedBundleMissingVariantError: The bundle image is missing the requested variant for this device.) (com. apple.mobiledevice error -402652913 (0x800010F)) FunctionName = -[PersonalizedImage mountImage:] LineNumber = 1816 ERROR: Failed to find image for variant/identity: (variant: DeveloperDiskImage | boardID: 4 | chipID: 33088 | securityDomain: 1). (com.apple.mobiledevice error -402652913 (0xE800010F)) FunctionName = -[PersonalizedImage initializeImageProperties:] LineNumber = 1063
See the response in Can't build onto iPhone 16e with XCode 16.1.