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flutter run: Connection closed before full header was received #12214

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flutter run: Connection closed before full header was received#12214

Description

@JFixby
JFixby
opened on Sep 22, 2017
[ +461 ms] Observatory URL on device: http://127.0.0.1:40907/
[   +2 ms] D:\AndroidDev\AndroidSDK\platform-tools\adb -s emulator-5554 forward tcp:8100 tcp:40907
[  +32 ms] Forwarded host port 8100 to device port 40907 for Observatory
[  +54 ms] Connected to service protocol: http://127.0.0.1:8100/
[   +5 ms] getVM: {}
Unhandled exception:
Exception: Error connecting to observatory: WebSocketChannelException: WebSocketChannelException: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:8100/ws
#0      throwToolExit (package:flutter_tools/src/base/common.dart:29)
#1      VM.invokeRpcRaw (package:flutter_tools/src/vmservice.dart:738)
<asynchronous suspension>
#2      VM._fetchDirect (package:flutter_tools/src/vmservice.dart:566)
<asynchronous suspension>
#3      ServiceObject.reload (package:flutter_tools/src/vmservice.dart:414)
<asynchronous suspension>
#4      VMService.getVM (package:flutter_tools/src/vmservice.dart:243)
#5      FlutterDevice.getVMs (package:flutter_tools/src/resident_runner.dart:88)
<asynchronous suspension>
#6      ResidentRunner.connectToServiceProtocol (package:flutter_tools/src/resident_runner.dart:584)
<asynchronous suspension>
#7      HotRunner.attach (package:flutter_tools/src/run_hot.dart:106)
<asynchronous suspension>
#8      HotRunner.run (package:flutter_tools/src/run_hot.dart:209)
<asynchronous suspension>
#9      RunCommand.runCommand (package:flutter_tools/src/commands/run.dart:348)
<asynchronous suspension>
#10     FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:239)
<asynchronous suspension>
#11     RunCommand.verifyThenRunCommand (package:flutter_tools/src/commands/run.dart:232)
<asynchronous suspension>
#12     FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:181)
<asynchronous suspension>
#13     CommandRunner.runCommand (package:args/command_runner.dart:194)
<asynchronous suspension>
#14     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:276)
<asynchronous suspension>                                                                                                                                                                                 6:52 PM
#15     CommandRunner.run.<anonymous closure> (package:args/command_runner.dart:109)
#16     new Future.sync (dart:async/future.dart:222)
#17     CommandRunner.run (package:args/command_runner.dart:109)
#18     FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:161)
#19     run.<anonymous closure> (package:flutter_tools/executable.dart:143)
<asynchronous suspension>
#20     AppContext._run (package:flutter_tools/src/base/context.dart:76)
<asynchronous suspension>
#21     AppContext.runInZone.<anonymous closure> (package:flutter_tools/src/base/context.dart:66)
#22     _rootRun (dart:async/zone.dart:1120)
#23     _CustomZone.run (dart:async/zone.dart:1001)
#24     runZoned (dart:async/zone.dart:1467)
#25     AppContext.runInZone (package:flutter_tools/src/base/context.dart:65)
#26     run (package:flutter_tools/executable.dart:114)
<asynchronous suspension>
#27     main (package:flutter_tools/executable.dart:67)
<asynchronous suspension>
#28     main (file:///D:/AndroidDev/flutter/packages/flutter_tools/bin/flutter_tools.dart:16)
#29     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:263)
#30     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:151)

>flutter doctor
[√] Flutter (on Microsoft Windows [Version 10.0.15063], locale en-US, channel master)
    • Flutter at D:\AndroidDev\flutter
    • Framework revision 63802b3dff (15 hours ago), 2017-09-21 18:29:16 -0700
    • Engine revision 0a6e415b60
    • Tools Dart version 1.25.0-dev.11.0

[√] Android toolchain - develop for Android devices (Android SDK 26.0.1)
    • Android SDK at D:\AndroidDev\AndroidSDK
    • Platform android-26, build-tools 26.0.1
    • Java binary at: C:\ProgramData\Oracle\Java\javapath\java.exe
    • Java version Java(TM) SE Runtime Environment (build 1.8.0_144-b01)

[X] Android Studio (not installed)
    • Android Studio not found; download from https://developer.android.com/studio/index.html
      (or visit https://flutter.io/setup/#android-setup for detailed instructions).

[√] IntelliJ IDEA Community Edition (version 2017.2)
    • Flutter plugin version 17.0
    • Dart plugin version 172.4155.35

[√] Connected devices
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 7.1.1 (API 25) (emulator)

Activity

  1. JFixby
    changed the title [-]Connection closed before full header was received[/-] [+]flutter run: Connection closed before full header was received[/+] on Sep 23, 2017

  2. YaminT commented on Feb 27, 2018

    @YaminT
    YaminT
    on Feb 27, 2018

    I solved it by using https instead of http.

  3. Hixie commented on May 30, 2018

    @Hixie
    Hixie
    on May 30, 2018
    Contributor

    Closing because we haven't been able to reproduce. Please let us know if you still see this.

  4. Hixie
    closed this as completedon May 30, 2018

  5. sahil311289 commented on Jul 3, 2018

    @sahil311289
    sahil311289
    on Jul 3, 2018
    Launching lib/main.dart on iPhone X in debug mode...
Warning: Missing asset in fonts for BadScript
Warning: Missing asset in fonts for Roboto
Warning: Missing asset in fonts for Roboto
Starting Xcode build...
Xcode build done.
Error connecting to the service protocol: HttpException: Connection closed before full header was received, uri = http://127.0.0.1:8100/ws

    Flutter doctor

    /Users/sahil/flutterDevelopment/flutter/bin/flutter --no-color doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, v0.5.1, on Mac OS X 10.13.5 17F77, locale en-IN)
[!] Android toolchain - develop for Android devices (Android SDK 28.0.0-rc1)
    ✗ Android license status unknown.
[✓] iOS toolchain - develop for iOS devices (Xcode 9.4.1)
[✓] Android Studio (version 3.1)
[✓] IntelliJ IDEA Community Edition (version 2018.1.5)
[✓] VS Code (version 1.23.1)
[✓] Connected devices (1 available)

! Doctor found issues in 1 category.
Process finished with exit code 0

  6. jjarral commented on Jul 21, 2018

    @jjarral
    jjarral
    on Jul 21, 2018

    How did you do that? @YaminT
    In which file did you changed http to https?

  7. nb7123 commented on May 5, 2019

    @nb7123
    nb7123
    on May 5, 2019

    I got this issue too, when i load 40 images from network at once

  8. mklim
    added a commit that references this issue on Sep 11, 2019

    Manual roll of engine 7ea9884...5b94c8a (#40275)

    0de6fc8
  9. mklim
    added a commit that references this issue on Sep 12, 2019

    Roll engine from 7ea9884..3c6383f (77 commits 🔥) (#40372)

    d4b1f49
  10. aam
    added a commit that references this issue on Sep 12, 2019

    Roll engine to 6e6de94

    0cd7b26
  11. mklim
    added a commit that references this issue on Sep 13, 2019

    Roll engine to 6e6de94 (#40394)

    c37d06c
  12. mklim
    added a commit that references this issue on Sep 13, 2019

    Roll engine 7ea9884..1b63444 (91 commits 🔥🔥🔥) (#40442)

    8d23bcf
  13. Inconnu08
    added 4 commits that reference this issue on Sep 30, 2019

    Manual roll of engine 7ea9884...5b94c8a (flutter#40275)

    1c97731

    Roll engine from 7ea9884..3c6383f (77 commits 🔥) (flutter#40372)

    fcec123

    Roll engine to 6e6de94 (flutter#40394)

    1d6b845

    Roll engine 7ea9884..1b63444 (91 commits 🔥🔥🔥) (flutter#40442)

    a4280e3

  14. flutterq commented on Feb 17, 2021

    @flutterq
    flutterq
    on Feb 17, 2021 · Hidden as spam

  15. CheaVanto commented on Mar 9, 2021

    @CheaVanto
    CheaVanto
    on Mar 9, 2021

    @flutterq You think it is the best solution for downgrade from Android Q to Pie? We develop for user. User can use any version. Thus we need to tell user downgrade from Q to Pie?

  16. github-actions commented on Jul 30, 2021

    @github-actions
    github-actionsbot
    on Jul 30, 2021

    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.

  17. github-actions
    locked as resolved and limited conversation to collaborators on Jul 30, 2021
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