Run flutter run on an app that hasn't migrated to UIScene using iOS 27 device. You'll get a log like this.
We should provided guided feedback and point to our docs to migrate.
2026-06-09 17:21:45.971278-0500 Flutter Gallery[1198:212480] failure in void _UIApplicationEvaluateRuntimeIssueForNoSceneLifecycleAdoption(void)_block_invoke (UIApplication_RuntimeIssues.m:106) : Application failed to launch: UIScene life cycle is required for apps built with this SDK. See Technote TN3187 for more information on migration.
Process 1198 resuming
Process 1198 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BREAKPOINT (code=1, subcode=0x18a7c1ce4)
frame #0: 0x000000018a7c1ce4 UIKitCore`___UIApplicationEvaluateRuntimeIssueForNoSceneLifecycleAdoption_block_invoke + 700
UIKitCore`___UIApplicationEvaluateRuntimeIssueForNoSceneLifecycleAdoption_block_invoke:
-> 0x18a7c1ce4 <+700>: brk #0
0x18a7c1ce8 <+704>: brk #0x1
UIKitCore`_UIApplicationConfigurationRuntimeIssuesLog:
0x18a7c1cec <+0>: adrp x8, 399471
0x18a7c1cf0 <+4>: ldr x8, [x8, #0x1b0]
Target 0: (Flutter Gallery) stopped.
Run
flutter runon an app that hasn't migrated to UIScene using iOS 27 device. You'll get a log like this.We should provided guided feedback and point to our docs to migrate.