Mac_ios ios_debug_workflow failing after https://github.com/flutter/flutter/pull/189993

I think the test needs to be adjusted, so I'm going to suppress it for now.

https://ci.chromium.org/ui/p/flutter/builders/luci.flutter.prod/Mac_ios%20ios_debug_workflow

[2026-08-14 09:13:14.153615] [STDOUT] stdout: [+5672 ms] [lldb]: 1 location added to breakpoint 1
[2026-08-14 09:13:14.154125] [STDOUT] stdout: [   +1 ms] Application launched on the device. Waiting for Dart VM Service url.
[2026-08-14 09:13:14.159554] [STDOUT] stdout: [   +5 ms] Checking for advertised Dart VM Services...
[2026-08-14 09:13:14.175670] [STDOUT] stdout: [  +16 ms] Running 5 shutdown hooks
[2026-08-14 09:13:14.182360] [STDOUT] stdout: [   +6 ms] executing: xcrun devicectl device process terminate --device 00008030-001439910C2B402E --pid 1046 --kill --json-output /opt/s/w/ir/x/t/flutter_tools.bkfhrw/core_devices.d3u5pw/terminate_results.json
[2026-08-14 09:13:14.189342] [STDOUT] stdout: [   +7 ms] lldb exited with code -15
[2026-08-14 09:13:14.224648] [STDOUT] stdout: [  +35 ms] #0      _NativeSocket.send (dart:io-patch/socket_patch.dart:1545:34)
[2026-08-14 09:13:14.224706] [STDOUT] stdout:            #1      _RawDatagramSocket.send (dart:io-patch/socket_patch.dart:3069:15)
[2026-08-14 09:13:14.224786] [STDOUT] stdout:            #2      MDnsClient.lookup (package:multicast_dns/multicast_dns.dart:230:22)
[2026-08-14 09:13:14.224838] [STDOUT] stdout:            #3      MDnsVmServiceDiscovery._doPollingVmService (package:flutter_tools/src/mdns_discovery.dart:308:66)
[2026-08-14 09:13:14.225095] [STDOUT] stdout:            <asynchronous suspension>
[2026-08-14 09:13:14.225132] [STDOUT] stdout:            #4      MDnsVmServiceDiscovery._pollingVmService.<anonymous closure> (package:flutter_tools/src/mdns_discovery.dart:241:62)
[2026-08-14 09:13:14.225154] [STDOUT] stdout:            <asynchronous suspension>
[2026-08-14 09:13:14.225209] [STDOUT] stdout: 
[2026-08-14 09:13:14.229460] [STDOUT] stderr: [   +2 ms] Flutter could not access the local network.
[2026-08-14 09:13:14.229509] [STDOUT] stderr: 
[2026-08-14 09:13:14.229528] [STDOUT] stderr:            Please ensure your IDE or terminal app has permission to access devices on the local network. This allows Flutter to connect to the Dart VM.
[2026-08-14 09:13:14.229546] [STDOUT] stderr: 
[2026-08-14 09:13:14.229610] [STDOUT] stderr:            You can grant this permission in System Settings > Privacy & Security > Local Network.
[2026-08-14 09:13:14.229632] [STDOUT] stderr: 
[2026-08-14 09:13:14.229647] [STDOUT] stderr:            SocketException: Send failed (OS Error: No route to host, errno = 65), address = 0.0.0.0, port = 5353
[2026-08-14 09:13:14.229662] [STDOUT] stderr: 
[2026-08-14 09:13:14.231931] [STDOUT] stdout: [   +4 ms] mDNS query failed. Checking for an interface with a ipv4 link local address.
[2026-08-14 09:13:14.235522] [STDOUT] stdout: [   +3 ms] Found interface "en0":
[2026-08-14 09:13:14.236049] [STDOUT] stdout: [        ] 	Bound address: "100.127.108.54" 
[2026-08-14 09:13:14.236197] [STDOUT] stdout: [        ] Found interface "en6":
[2026-08-14 09:13:14.236398] [STDOUT] stdout: [        ] 	Bound address: "169.254.222.181" link local
[2026-08-14 09:13:14.237109] [STDOUT] stdout: [        ] An interface with an ipv4 link local address was found.
[2026-08-14 09:13:14.240430] [STDOUT] stdout: [   +3 ms] Installing and launching... (completed in 15.3s)
[2026-08-14 09:13:14.259636] [STDOUT] stderr: [  +19 ms] Error launching application on iPhone 11.
[2026-08-14 09:13:14.261901] [STDOUT] stdout: [   +2 ms] "flutter run" took 103,236ms.
[2026-08-14 09:13:14.266095] [STDOUT] stderr: [   +3 ms] 
[2026-08-14 09:13:14.266147] [STDOUT] stderr:            #0      throwToolExit (package:flutter_tools/src/base/common.dart:34:3)
[2026-08-14 09:13:14.266171] [STDOUT] stderr:            #1      RunCommand.runCommand (package:flutter_tools/src/commands/run.dart:946:9)
[2026-08-14 09:13:14.266189] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266204] [STDOUT] stderr:            #2      FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1680:27)
[2026-08-14 09:13:14.266270] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266291] [STDOUT] stderr:            #3      AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
[2026-08-14 09:13:14.266309] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266395] [STDOUT] stderr:            #4      CommandRunner.runCommand (package:args/command_runner.dart:212:13)
[2026-08-14 09:13:14.266481] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266501] [STDOUT] stderr:            #5      FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:496:9)
[2026-08-14 09:13:14.266556] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266640] [STDOUT] stderr:            #6      AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
[2026-08-14 09:13:14.266743] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266935] [STDOUT] stderr:            #7      FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:431:5)
[2026-08-14 09:13:14.266958] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.266996] [STDOUT] stderr:            #8      FlutterCommandRunner.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:307:33)
[2026-08-14 09:13:14.267012] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.267125] [STDOUT] stderr:            #9      run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:104:11)
[2026-08-14 09:13:14.267152] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.267175] [STDOUT] stderr:            #10     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:154:19)
[2026-08-14 09:13:14.267205] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.267257] [STDOUT] stderr:            #11     main (package:flutter_tools/executable.dart:103:3)
[2026-08-14 09:13:14.267272] [STDOUT] stderr:            <asynchronous suspension>
[2026-08-14 09:13:14.267282] [STDOUT] stderr: 
[2026-08-14 09:13:14.267313] [STDOUT] stderr: 
[2026-08-14 09:13:14.267532] [STDOUT] stdout: [        ] exiting with code 1
[2026-08-14 09:13:14.278898] [STDOUT] Flutter run returned non-zero exit code: 1.

Okay so the test is failing because we're now killing lldb and devicectl on shutdown:

flutter/packages/flutter_tools/lib/src/ios/core_devices.dart

Lines 155 to 162 in f4228d7

    
           // Kill LLDB and devicectl if the CLI shuts down so they do not hang in the background. 
        
           shutdownHooks.addShutdownHook(() async { 
        
             try { 
        
               await stopApp(deviceId: deviceId, processId: processId); 
        
             } on Exception { 
        
               // ignore any failures 
        
             } 
        
           });

And because mDNS doesn't work in CI, the Dart VM discovery stuff ends immediately:

flutter/packages/flutter_tools/lib/src/ios/devices.dart

Lines 982 to 987 in f4228d7

    
           final discoveryOptions = <Future<Uri?>>[ 
        
             vmUrlFromMDns, 
        
             // vmServiceDiscovery uses device logs (`idevicesyslog`), which doesn't work 
        
             // on wireless devices. 
        
             if (discoverVMUrlFromLogs) vmServiceDiscovery.uri, 
        
           ];

And returns a failure:

flutter/packages/flutter_tools/lib/src/ios/devices.dart

Lines 811 to 821 in f4228d7

    
           if (localUri == null) { 
        
             await iosDeployDebugger?.stopAndDumpBacktrace(); 
        
             await dispose(); 
        
             _analytics.send( 
        
               Event.appleUsageEvent( 
        
                 workflow: 'ios-physical-deployment', 
        
                 parameter: deploymentMethod.name, 
        
                 result: 'debugging failed', 
        
               ), 
        
             ); 
        
             return LaunchResult.failed();

Which causes a non-zero exit code. Since we're killing the process, I don't think the exit code really matters. Technically yeah, the app failed to launch because the test kills it on purpose.

flutter/dev/devicelab/bin/tasks/ios_debug_workflow.dart

Line 118 in f4228d7

process.kill();

Actually, we should just remove this test since lldb/devicectl is the default now.

Remove ios_debug_workflow test (flutter#191141)

Note to self: even though the test was removed, the closing of this bug un-spressed it (yay, it works):

"Automatic unsuppression: issue #191138 was closed."

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

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`Mac_ios ios_debug_workflow` failing after https://github.com/flutter/flutter/pull/189993 #191138

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	// Kill LLDB and devicectl if the CLI shuts down so they do not hang in the background.
	shutdownHooks.addShutdownHook(() async {
	try {
	await stopApp(deviceId: deviceId, processId: processId);
	} on Exception {
	// ignore any failures
	}
	});

	final discoveryOptions = <Future<Uri?>>[
	vmUrlFromMDns,
	// vmServiceDiscovery uses device logs (`idevicesyslog`), which doesn't work
	// on wireless devices.
	if (discoverVMUrlFromLogs) vmServiceDiscovery.uri,
	];

	if (localUri == null) {
	await iosDeployDebugger?.stopAndDumpBacktrace();
	await dispose();
	_analytics.send(
	Event.appleUsageEvent(
	workflow: 'ios-physical-deployment',
	parameter: deploymentMethod.name,
	result: 'debugging failed',
	),
	);
	return LaunchResult.failed();

Mac_ios ios_debug_workflow failing after https://github.com/flutter/flutter/pull/189993 #191138

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vashworth commented on Aug 14, 2026

jtmcdole commented on Aug 18, 2026

github-actions commented on Sep 1, 2026

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`Mac_ios ios_debug_workflow` failing after https://github.com/flutter/flutter/pull/189993 #191138