Issue with flutter DEBUG mode stop working from VS CODE, iOS 26

[Pengi123]

Hi, I have Issue with flutter DEBUG mode stop working from VS CODE on a physical iPhone 15 PRO iOS 26
When I go to Xcode it is working without any issues in debug mode.

From VS CODE REALISE MODE it is working good from terminal, but when I click play button from main.dart it stuck at "Xcode build done. 23.0s" it show splash screen

I also upgraded flutter to last version.
Flutter doctor, everything good.

---

[✓] Flutter (Channel master, 3.37.0-1.0.pre-141, on macOS 15.6.1 24G90 darwin-arm64, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK version 36.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 26.0)
[✓] Chrome - develop for the web
[✓] Connected device (3 available)
[✓] Network resources

• No issues found!

---

I see these issues start to happen when I upgrade my phone to iOS 26.
All my projects are affected

[tirth-patel-nc]

@Pengi123 thanks for the report. Could you please share the verbose logs and confirm whether #175438 is related to your case or not?

[fufesou]

@tirth-patel-nc No, it's the same issue to #163984

[Pengi123]

@tirth-patel-nc No, it's the same issue to #163984

@fufesou @tirth-patel-nc Yes, it is close but my problem is it stuck at "Installing and launching..." last at logs I see that done "Xcode build done. 23.0s"" but "Installing and launching..." never finishes
I see that was for beta but live version still have that problem? not sure if that was fixed or not?

[tirth-patel-nc]

@ianloic @Pengi123 Are you using wired/wireless connection?

[Pengi123]

@ianloic @Pengi123 Are you using wired/wireless connection?

@tirth-patel-nc Wired, I test to use wireless both dont work in DEBUG mode.
I test also to run debug mode on android phone debug mode from VS code it open without any issues.

[stutid]

Hi, I experience the same issue. I am using VSCode to run the app on a physical device with iOS 26.
XCode build done in 50 seconds.
The app installs and launches but gets stuck on the splash screen.
The app runs correctly in "release mode", but gets stuck on splash screen in "debug mode" and shows below error in XCode 26 console.

-- LLDB integration loaded --
UIScene lifecycle will soon be required. Failure to adopt will result in an assert in the future.
FlutterView implements focusItemsInRect: - caching for linear focus movement is limited as long as this view is on screen.
../../../flutter/third_party/dart/runtime/vm/virtual_memory_posix.cc: 254: error: Unable to flip between RX and RW memory protection on pages
version=3.8.0 (stable) (Wed May 14 09:07:14 2025 -0700) on "ios_arm64"
pid=3387, thread=259, isolate_group=(nil)(0x0), isolate=(nil)(0x0)
os=ios, arch=arm64, comp=no, sim=no
isolate_instructions=0, vm_instructions=0
fp=16fce1b00, sp=16fce1ae0, pc=106a59b60
pc 0x0000000106a59b60 fp 0x000000016fce1b00 Dart_DumpNativeStackTrace+0x18
pc 0x00000001065f8368 fp 0x000000016fce1b20 dart::Assert::Fail(char const*, ...) const+0x30
pc 0x0000000106646c24 fp 0x000000016fce25d0 dart::Dart::DartInit(Dart_InitializeParams const*)+0x5a38
pc 0x0000000106a39fa4 fp 0x000000016fce2a50 Dart_Initialize+0x60
pc 0x00000001065beeb0 fp 0x000000016fce3000 flutter::DartVM::Create(flutter::Settings const&, fml::RefPtr<flutter::DartSnapshot const>, fml::RefPtr<flutter::DartSnapshot const>, std::_fl::shared_ptrflutter::IsolateNameServer)+0x1b44
pc 0x000000010651d810 fp 0x000000016fce3760 flutter::Shell::Create(flutter::PlatformData const&, flutter::TaskRunners const&, flutter::Settings, std::_fl::function<std::_fl::unique_ptr<flutter::PlatformView, std::_fl::default_deleteflutter::PlatformView> (flutter::Shell&)> const&, std::_fl::function<std::_fl::unique_ptr<flutter::Rasterizer, std::_fl::default_deleteflutter::Rasterizer> (flutter::Shell&)> const&, bool)+0x2fc
pc 0x0000000106111e24 fp 0x000000016fce44e0 -[FlutterEngine createShell:libraryURI:initialRoute:]+0x9fc
pc 0x000000010614466c fp 0x000000016fce4530 -[FlutterViewController sharedSetupWithProject:initialRoute:]+0x16c
pc 0x00000001061444d8 fp 0x000000016fce4560 -[FlutterViewController awakeFromNib]+0x6c
pc 0x000000019e733218 fp 0x000000016fce4a30 +0x6dc
pc 0x000000019ed131a0 fp 0x000000016fce4aa0 +0xec
pc 0x000000019ed13078 fp 0x000000016fce4ad0 +0x50
pc 0x000000019eb4e25c fp 0x000000016fce4b30 +0x8c
pc 0x000000019d9776b0 fp 0x000000016fce4b70 +0xa8
pc 0x000000019eb4d780 fp 0x000000016fce4d60 +0x280
pc 0x000000019e17bce8 fp 0x000000016fce4d90 +0x74
pc 0x000000019d8ba8d0 fp 0x000000016fce4de0 _UIScenePerformActionsWithLifecycleActionMask+0x70
pc 0x000000019e17c564 fp 0x000000016fce4ea0 +0xfc
pc 0x000000019e17c070 fp 0x000000016fce4f10 +0xd4
pc 0x000000019e17c37c fp 0x000000016fce5020 +0x260
pc 0x000000019e17be08 fp 0x000000016fce5090 +0xf4
pc 0x000000019e187150 fp 0x000000016fce50d0 +0x94
pc 0x000000019e5eef4c fp 0x000000016fce51d0 +0x2e0
pc 0x000000019d8bb694 fp 0x000000016fce5240 _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion+0xe0
pc 0x000000019e186e4c fp 0x000000016fce5340 +0x13c
pc 0x000000019dfc7804 fp 0x000000016fce5490 +0x268
pc 0x000000019dfc6898 fp 0x000000016fce5600 +0xd0
pc 0x000000019dfc7470 fp 0x000000016fce56c0 +0xf4
pc 0x000000019eb4c7e0 fp 0x000000016fce5780 +0x1dc
pc 0x000000019e617f78 fp 0x000000016fce5810 +0x120
pc 0x00000001b76d7388 fp 0x000000016fce59c0 +0x16c
pc 0x00000001b76d7840 fp 0x000000016fce5a00 +0x80
pc 0x00000001b76d71a0 fp 0x000000016fce5ad0 +0x1b4
pc 0x00000001b7745818 fp 0x000000016fce5b90 +0x120
pc 0x00000001b76e4f40 fp 0x000000016fce5bd0 +0xa8
pc 0x00000001b7701cc0 fp 0x000000016fce5d20 +0x1e0
pc 0x00000001b7703624 fp 0x000000016fce5db0 +0x10c
pc 0x00000001b76e4f40 fp 0x000000016fce5df0 +0xa8
pc 0x000000010357a2d0 fp 0x000000016fce5e00 _dispatch_client_callout+0x10
pc 0x0000000103564998 fp 0x000000016fce5e50 _dispatch_block_invoke_direct+0x128
pc 0x00000001af22d1d4 fp 0x000000016fce5e80 +0x34
pc 0x00000001af22d054 fp 0x000000016fce5f00 +0xe0
pc 0x0000000197f47230 fp 0x000000016fce5f10 +0x1c
pc 0x0000000197f471a4 fp 0x000000016fce5f40 +0xac
pc 0x0000000197f24cd0 fp 0x000000016fce5fa0 +0x14c
pc 0x0000000197efa8b0 fp 0x000000016fce6d00 +0x334
pc 0x0000000197ef9c44 fp 0x000000016fce6d90 +0x214
pc 0x00000002372ea498 fp 0x000000016fce6de0 GSEventRunModal+0x78
pc 0x000000019d874ddc fp 0x000000016fce6e60 +0x318
pc 0x000000019d819b0c fp 0x000000016fce6ef0 UIApplicationMain+0x150
pc 0x000000019d955860 fp 0x000000016fce6f30 +0x24c
pc 0x00000001017f0468 fp 0x000000016fce6f80 $sSo21UIApplicationDelegateP5UIKitE4mainyyFZ+0x80
pc 0x00000001017f03d8 fp 0x000000016fce6fb0 $s6Runner11AppDelegateC5$mainyyFZ+0x2c
pc 0x00000001017f172c fp 0x000000016fce6fd0 __debug_main_executable_dylib_entry_point+0x1c
pc 0x0000000194f72e28 fp 0x000000016fce7640 +0x1bcc
-- End of DumpStackTrace

[tirth-patel-nc]

@fufesou @stutid @Pengi123 could you please share the verbose logs from Xcode along with the output of flutter run -v? that would help the team investigate this issue more effectively. thank you

[ivanbandura]

A change to iOS has caused a temporary break in Flutter's debug mode on
physical devices.
See #163984 for details.
In the meantime, we recommend these temporary workarounds:

• When developing with a physical device, use one running iOS 18.3 or lower.
• Use a simulator for development rather than a physical device.
• If you must use a device updated to iOS 26.0 23A341, use Flutter's release or
  profile mode via --release or --profile flags.