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iOS 26 support broken - Unable to locate DeviceSupport directory with suffix 'DeveloperDiskImage.dmg' #608
Description
iOS 26 no longer ships DeveloperDiskImage.dmg - it uses DDI-only format.
Error:
Unable to locate DeviceSupport directory with suffix 'DeveloperDiskImage.dmg'
Setup:
- macOS 26.4 (25E246)
- iOS 26.4 (25E246)
- Xcode 26.4
- ios-deploy 1.12.2 (HEAD-83f7d9e)
Workaround suggested by cordova-ios team:
Using xcrun devicectl works instead:
xcrun devicectl device install app --device ""
xcrun devicectl device process launch --device "" --terminate-existing
Please consider replacing ios-deploy's DeveloperDiskImage dependency
with xcrun devicectl for iOS 26+ compatibility.
Reference: apache/cordova-ios#1594
Activity
petercutting commentedon Jul 30, 2026
trying to install my Cordova app on an iPhone
I have just run into this error. the xcrun suggestion just gives a bunch of errors. see below
is there no other solution? can I downgrade Xcode or iOS maybe?
Xcode 26.5
iOS 26.3
xcrun devicectl device install app --device ""
Error: Missing expected argument ''
Help: The path to the application to be installed on the device
Usage: devicectl device install app --device <uuid|ecid|serial_number|udid|name|dns_name> [--filter ] [--sort-by ] [--columns ...] [--hide-default-columns] [--hide-headers] [--verbose] [--quiet] [--timeout ] [--json-output ] [--log-output ]
See 'devicectl device install app --help' for more information.