Hot Reload not working on iOS device

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Loke Dupont

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Apr 18, 2018, 5:20:24 AM4/18/18

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I am having some starting trouble getting hot reload to work on iOS. It works fine when using the simulator device, but i get a WebSocketChannelException when trying with my actual iOS device.

`flutter doctor`seems totally happy:

[✓] Flutter (Channel dev, v0.3.0, on Mac OS X 10.13.4 17E199, locale en-DK)

• Flutter version 0.3.0 at /Users/loke/Projects/flutter

• Framework revision c73b8a7cf6 (5 days ago), 2018-04-12 16:17:26 -0700

• Engine revision 8a6e64a8ef

• Dart version 2.0.0-dev.47.0.flutter-4126459025

[✓] Android toolchain - develop for Android devices (Android SDK 27.0.3)

• Android SDK at /Users/loke/Library/Android/sdk

• Android NDK location not configured (optional; useful for native profiling support)

• Platform android-27, build-tools 27.0.3

• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java

• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)

• All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 9.3)

• Xcode at /Applications/Xcode.app/Contents/Developer

• Xcode 9.3, Build version 9E145

• ios-deploy 1.9.2

• CocoaPods version 1.5.0

[✓] Android Studio (version 3.0)

• Android Studio at /Applications/Android Studio.app/Contents

• Flutter plugin version 22.2.1

• Dart plugin version 171.4424

• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)

[✓] IntelliJ IDEA Ultimate Edition (version 2018.1.1)

• IntelliJ at /Users/loke/Applications/JetBrains Toolbox/IntelliJ IDEA Ultimate.app

• Flutter plugin version 23.2.3

• Dart plugin version 181.4445.29

[✓] Connected devices (1 available)

• Lokes iPhone • 27f6158b8cb09bb9535a71612241beac409bcf32 • ios • iOS 11.3

• No issues found!

But for some reason it still fails when doing flutter run:

[ +138 ms] ------ Debug phase ------

[ ] Starting debug of 27f6158b8cb09bb9535a71612241beac409bcf32 (D221AP, D221AP, uknownos, unkarch) a.k.a. 'Lokes iPhone' connected through USB...

[ +53 ms] [ 0%] Looking up developer disk image

[ +20 ms] [ 95%] Developer disk image mounted successfully

[+3362 ms] [100%] Connecting to remote debug server

[ ] -------------------------

[ +35 ms] (lldb) command source -s 0 '/tmp/0FB2E9CF-E845-427A-AE7A-B60516B55F48/fruitstrap-lldb-prep-cmds-27f6158b8cb09bb9535a71612241beac409bcf32'

[ ] Executing commands in '/tmp/0FB2E9CF-E845-427A-AE7A-B60516B55F48/fruitstrap-lldb-prep-cmds-27f6158b8cb09bb9535a71612241beac409bcf32'.

[ ] (lldb) platform select remote-ios --sysroot '/Users/loke/Library/Developer/Xcode/iOS DeviceSupport/11.3 (15E216)/Symbols'

[ ] Platform: remote-ios

[ ] Connected: no

[ ] SDK Path: "/Users/loke/Library/Developer/Xcode/iOS DeviceSupport/11.3 (15E216)/Symbols"

[ ] (lldb) target create "/Users/loke/Projects/blockbuster_mobile/build/ios/iphoneos/Runner.app"

[+2919 ms] Current executable set to '/Users/loke/Projects/blockbuster_mobile/build/ios/iphoneos/Runner.app' (arm64).

[ ] (lldb) script fruitstrap_device_app="/private/var/containers/Bundle/Application/7D4C59EF-5CB1-4B58-A916-980B1469D949/Runner.app"

[ ] (lldb) script fruitstrap_connect_url="connect://127.0.0.1:50925"

[ ] (lldb) target modules search-paths add /usr "/Users/loke/Library/Developer/Xcode/iOS DeviceSupport/11.3 (15E216)/Symbols/usr" /System "/Users/loke/Library/Developer/Xcode/iOS DeviceSupport/11.3 (15E216)/Symbols/System" "/private/var/containers/Bundle/Application/7D4C59EF-5CB1-4B58-A916-980B1469D949" "/Users/loke/Projects/blockbuster_mobile/build/ios/iphoneos" "/var/containers/Bundle/Application/7D4C59EF-5CB1-4B58-A916-980B1469D949" "/Users/loke/Projects/blockbuster_mobile/build/ios/iphoneos" /Developer "/Users/loke/Library/Developer/Xcode/iOS DeviceSupport/11.3 (15E216)/Symbols/Developer"

[ +47 ms] (lldb) command script import "/tmp/0FB2E9CF-E845-427A-AE7A-B60516B55F48/fruitstrap_27f6158b8cb09bb9535a71612241beac409bcf32.py"

[ +3 ms] (lldb) command script add -f fruitstrap_27f6158b8cb09bb9535a71612241beac409bcf32.connect_command connect

[ ] (lldb) command script add -s asynchronous -f fruitstrap_27f6158b8cb09bb9535a71612241beac409bcf32.run_command run

[ ] (lldb) command script add -s asynchronous -f fruitstrap_27f6158b8cb09bb9535a71612241beac409bcf32.autoexit_command autoexit

[ ] (lldb) command script add -s asynchronous -f fruitstrap_27f6158b8cb09bb9535a71612241beac409bcf32.safequit_command safequit

[ ] (lldb) connect

[ +35 ms] (lldb) run

[ +222 ms] success

[ ] (lldb) safequit

[ +113 ms] Process 8083 detached

[ +31 ms] Application launched on the device. Waiting for observatory port.

[ +292 ms] Observatory URL on device: http://127.0.0.1:49889/

[ +8 ms] /usr/local/bin/iproxy 8105 49889 27f6158b8cb09bb9535a71612241beac409bcf32

[ +4 ms] Forwarded port ForwardedPort HOST:8105 to DEVICE:49889

[ ] Forwarded host port 8105 to device port 49889 for Observatory

[ +5 ms] Connecting to service protocol: http://127.0.0.1:8105/

[ +140 ms] Error connecting to the service protocol: WebSocketChannelException: WebSocketChannelException: HttpException: , uri = http://127.0.0.1:8105/ws

[ +2 ms] "flutter run" took 22,649ms.

#0 throwToolExit (package:flutter_tools/src/base/common.dart:28)

#1 RunCommand.runCommand (package:flutter_tools/src/commands/run.dart:407)

#2 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:333)

#3 FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:270)

#4 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:142)

#5 _rootRun (dart:async/zone.dart:1126)

#6 _CustomZone.run (dart:async/zone.dart:1023)

#7 runZoned (dart:async/zone.dart:1501)

#8 AppContext.run (package:flutter_tools/src/base/context.dart:141)

#9 FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:261)

#10 CommandRunner.runCommand (package:args/command_runner.dart:194)

#11 FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:309)

#12 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:142)

#13 _rootRun (dart:async/zone.dart:1126)

#14 _CustomZone.run (dart:async/zone.dart:1023)

#15 runZoned (dart:async/zone.dart:1501)

#16 AppContext.run (package:flutter_tools/src/base/context.dart:141)

#17 FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:265)

#18 CommandRunner.run.<anonymous closure> (package:args/command_runner.dart:109)

#19 new Future.sync (dart:async/future.dart:224)

#20 CommandRunner.run (package:args/command_runner.dart:109)

#21 FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:174)

#22 run.<anonymous closure> (package:flutter_tools/runner.dart:54)

#23 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:142)

#24 _rootRun (dart:async/zone.dart:1126)

#25 _CustomZone.run (dart:async/zone.dart:1023)

#26 runZoned (dart:async/zone.dart:1501)

#27 AppContext.run (package:flutter_tools/src/base/context.dart:141)

#28 runInContext (package:flutter_tools/src/context_runner.dart:41)

#29 run (package:flutter_tools/runner.dart:49)

#30 main (package:flutter_tools/executable.dart:48)

#31 main (file:///Users/loke/Projects/flutter/packages/flutter_tools/bin/flutter_tools.dart:16)

#32 _startIsolate.<anonymous closure> (dart:isolate-patch/dart:isolate/isolate_patch.dart:277)

#33 _RawReceivePortImpl._handleMessage (dart:isolate-patch/dart:isolate/isolate_patch.dart:165)

Any pointers would be greatly appreciated. I did disable Connect over network in Xcode, and don't have the internet sharing feature on iOS enabled.

Best Regards

Loke Dupont

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