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Can't start DevTools from VS Code: Dart DevTools exited with code 66 #2398

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Can't start DevTools from VS Code: Dart DevTools exited with code 66#2398
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@lukevenediger
lukevenediger
opened on Apr 27, 2020

Hi there,

I get "code 66" error when trying to start DevTools from VS Code. Here's my log:

Dart Code extension: 3.9.1
Flutter extension: 3.9.1 (not activated)
VS Code: 1.44.2
Platform: linux
Workspace type: Flutter
Multi-root?: false
Dart SDK:
    Loc: /home/machine/tools/flutter/bin/cache/dart-sdk
    Ver: 2.7.2
Flutter SDK:
    Loc: /home/machine/tools/flutter
    Ver: 1.12.13+hotfix.9
HTTP_PROXY: undefined
NO_PROXY: undefined

Mon Apr 27 2020 [13:26:30 ...] Log file started
[13:26:36] [CommandProcesses] [Info] (PROC 11029) Logging data for process...
[13:26:37] [CommandProcesses] [Info] (PROC 11029) devtools 0.2.3
[13:26:37] [CommandProcesses] [Info] (PROC 11029) exited (0, null)
[13:26:37] [CommandProcesses] [Info] (PROC 11029) closed (0, null)
[13:26:37] [DevTools] [Info] Spawning /home/machine/tools/flutter/bin/cache/dart-sdk/bin/pub with args ["global","run","devtools","--machine","--enable-notifications","--try-ports","10"]
[13:26:37] [DevTools] [Info] ..  with {"toolEnv":{"FLUTTER_HOST":"VSCode","PUB_ENVIRONMENT":"vscode.dart-code"}}
[13:26:37] [DevTools] [Info]     PID: 6638
[13:26:37] [DevTools] [Error] Could not find a file named "pubspec.yaml" in "/home/machine/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.3".
[13:26:37] [DevTools] [Info] Process terminated! 66, null
[13:26:37] [General] [Error] Dart DevTools exited with code 66
[13:26:37] [General] [Error] Dart DevTools exited with code 66
Mon Apr 27 2020 [13:26:41 ...] Log file ended

I followed the steps in #2128 and deactivated then reactivated devtools. What I noticed though was that it's looking for the pubspec.yaml file in ~/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.3 but the directory ~/.pub-cache/hosted does not exist.

I did have issues with my flutter environment a while back, and may have removed ~/.pub-cache/hosted to fix my dependencies, but I can't remember for sure. It was a long day and my caffeine levels were dangerously low!

Any idea on how I could fix this? Thanks!

Activity

  1. lukevenediger
    changed the title [-]Can't start DevTools: Dart DevTools exited with code 66[/-] [+]Can't start DevTools from VS Code: Dart DevTools exited with code 66[/+] on Apr 27, 2020

  2. DanTup commented on Apr 27, 2020

    @DanTup
    DanTup
    on Apr 27, 2020
    Member

    @lukevenediger can you post the full output of running these commands (individually)?

    ~/tools/flutter/bin/cache/dart-sdk/bin/pub global list

~/tools/flutter/bin/cache/dart-sdk/bin/pub global deactivate devtools

~/tools/flutter/bin/cache/dart-sdk/bin/pub global activate devtools

~/tools/flutter/bin/cache/dart-sdk/bin/pub global run devtools
  3. DanTup
    added
    awaiting infoRequires more information from the customer to progress
    on Apr 27, 2020

  4. santhonydo commented on Apr 30, 2020

    @santhonydo
    santhonydo
    on Apr 30, 2020

    hi @DanTup - I have the same error and tried your commands. Here is the result:

    anthony@Anthonys-MacBook-Air ~ % flutter pub global list
    devtools 0.2.3
    anthony@Anthonys-MacBook-Air ~ % flutter pub global deactivate devtools
    Deactivated package devtools 0.2.3.
    anthony@Anthonys-MacBook-Air ~ % flutter pub global activate devtools
    Resolving dependencies...

    • args 1.6.0
    • async 2.4.1
    • browser_launcher 0.1.5
    • charcode 1.1.3
    • collection 1.14.12
    • convert 2.1.1
    • crypto 2.1.4
    • devtools 0.2.3 (0.2.4-dev.1 available)
    • devtools_server 0.2.3 (0.2.4-dev.1 available)
    • devtools_shared 0.2.3 (0.2.4-dev.1 available)
    • http 0.12.1
    • http_multi_server 2.2.0
    • http_parser 3.1.4
    • intl 0.16.1
    • logging 0.11.4
    • meta 1.1.8
    • mime 0.9.6+3
    • path 1.7.0
    • pedantic 1.9.0
    • shelf 0.7.5
      anthony@Anthonys-MacBook-Air ~ % flutter pub global list
      devtools 0.2.3
      anthony@Anthonys-MacBook-Air ~ % flutter pub global deactivate devtools
      Deactivated package devtools 0.2.3.
      anthony@Anthonys-MacBook-Air ~ % flutter pub global activate devtools
      Resolving dependencies...
    • args 1.6.0
    • async 2.4.1
    • browser_launcher 0.1.5
    • charcode 1.1.3
    • collection 1.14.12
    • convert 2.1.1
    • crypto 2.1.4
    • devtools 0.2.3 (0.2.4-dev.1 available)
    • devtools_server 0.2.3 (0.2.4-dev.1 available)
    • devtools_shared 0.2.3 (0.2.4-dev.1 available)
    • http 0.12.1
    • http_multi_server 2.2.0
    • http_parser 3.1.4
    • intl 0.16.1
    • logging 0.11.4
    • meta 1.1.8
    • mime 0.9.6+3
    • path 1.7.0
    • pedantic 1.9.0
    • shelf 0.7.5
    • shelf_static 0.2.8
    • source_span 1.7.0
    • sse 3.5.0
    • stack_trace 1.9.3
    • stream_channel 2.0.0
    • string_scanner 1.0.5
    • term_glyph 1.1.0
    • typed_data 1.1.6
    • usage 3.4.1
    • uuid 2.0.4
    • vm_service 3.0.0+1 (4.0.2 available)
    • webkit_inspection_protocol 0.5.0+1
      Precompiling executables...
      Precompiled devtools:devtools.
      Installed executable devtools.
      Activated devtools 0.2.3.
      anthony@Anthonys-MacBook-Air ~ % flutter pub global run devtools
      Serving DevTools at http://127.0.0.1:9100

  5. lukevenediger commented on May 1, 2020

    @lukevenediger
    lukevenediger
    on May 1, 2020
    Author

    Hey @DanTup, I'm sorry about not getting back to you sooner. My desktop crashed and I haven't been able to resuscitate it yet. Thanks @santhonydo for posting that output!

    I should have it running in the next few days and I'll come back here and post the output that you asked for.

  6. DanTup commented on May 1, 2020

    @DanTup
    DanTup
    on May 1, 2020
    Member

    @santhonydo after running those, does DevTools now work from VS Code? If not, can you provide a new log file to see if it's different? The original error shows DevTools failing to activate, but in the output from running the commands, it seems to be starting up normally.

    Thanks!

  7. santhonydo commented on May 3, 2020

    @santhonydo
    santhonydo
    on May 3, 2020

    @DanTup still getting error code 66 from VS code. here's the new log:

    Dart Code extension: 3.9.1
    Flutter extension: 3.9.1 (not activated)
    VS Code: 1.44.2
    Platform: mac
    Workspace type: Flutter
    Multi-root?: false
    Dart SDK:
    Loc: /Users/anthony/Documents/dev/flutter/bin/cache/dart-sdk
    Ver: 2.8.0
    Flutter SDK:
    Loc: /Users/anthony/Documents/dev/flutter
    Ver: 1.17.0-3.3.pre
    HTTP_PROXY: undefined
    NO_PROXY: undefined

    Sun May 03 2020 [16:05:07 GMT-0700 (Pacific Daylight Time)] Log file started
    [4:06:33 PM] [CommandProcesses] [Info] (PROC 2177) Logging data for process...
    [4:06:34 PM] [CommandProcesses] [Info] (PROC 2177) devtools 0.2.3
    [4:06:34 PM] [CommandProcesses] [Info] (PROC 2177) exited (0, null)
    [4:06:34 PM] [CommandProcesses] [Info] (PROC 2177) closed (0, null)
    [4:06:34 PM] [DevTools] [Info] Spawning /Users/anthony/Documents/dev/flutter/bin/cache/dart-sdk/bin/pub with args ["global","run","devtools","--machine","--enable-notifications","--try-ports","10"]
    [4:06:34 PM] [DevTools] [Info] .. with {"toolEnv":{"FLUTTER_HOST":"VSCode","PUB_ENVIRONMENT":"vscode.dart-code"}}
    [4:06:34 PM] [DevTools] [Info] PID: 584
    [4:06:34 PM] [DevTools] [Error] Could not find a file named "pubspec.yaml" in "/Users/anthony/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.3".
    [4:06:34 PM] [DevTools] [Info] Process terminated! 66, null
    [4:06:34 PM] [General] [Error] Dart DevTools exited with code 66
    [4:06:34 PM] [General] [Error] Dart DevTools exited with code 66
    Sun May 03 2020 [16:06:42 GMT-0700 (Pacific Daylight Time)] Log file ended

  8. DanTup commented on May 4, 2020

    @DanTup
    DanTup
    on May 4, 2020
    Member

    @santhonydo looks like the commands you ran were different to the ones I posted:

    ~/tools/flutter/bin/cache/dart-sdk/bin/pub global activate devtools

    vs

    anthony@Anthonys-MacBook-Air ~ % flutter pub global activate devtools

    VS Code always uses pub for DevTools and not flutter. Please try re-running them as above, and let me know if that solves the issue or you have any errors.

  9. santhonydo commented on May 5, 2020

    @santhonydo
    santhonydo
    on May 5, 2020

    @DanTup thanks! the issue was resolved after running these commands again

    `~/tools/flutter/bin/cache/dart-sdk/bin/pub global list

    ~/tools/flutter/bin/cache/dart-sdk/bin/pub global deactivate devtools

    ~/tools/flutter/bin/cache/dart-sdk/bin/pub global activate devtools

    ~/tools/flutter/bin/cache/dart-sdk/bin/pub global run devtools`

  10. DanTup commented on May 5, 2020

    @DanTup
    DanTup
    on May 5, 2020
    Member

    @santhonydo great! My guess is that something happened to your pub cache (I see this a lot, as I often delete it when I hit weird issues), and reinstalling would've fixed it (~/tools/flutter/bin/cache/dart-sdk/bin/pub cache repair probably would've also worked, but could also be a lot slower if you have a lot of packages in there).

    @lukevenediger please let me know if you're still seeing this and the steps above don't help.

  11. ZaferAlemdaroglu commented on May 6, 2020

    @ZaferAlemdaroglu
    ZaferAlemdaroglu
    on May 6, 2020

    i have same problem. Commands from terminal did not work.

    =>flutter pub global list
    devtools 0.2.4

    =>flutter pub global deactivate devtools
    Deactivated package devtools 0.2.4.

    =>flutter pub global activate devtools
    Downloading.......
    Precompiling executables...
    Precompiled devtools:devtools.
    Installed executable devtools.
    Activated devtools 0.2.4.

    =>flutter pub global run devtools

    Unhandled exception:
Invalid argument(s): A directory corresponding to fileSystemPath "...Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.4/build" could not be found

#0      createStaticHandler (package:shelf_static/src/static_handler.dart:50:5)
#1      defaultHandler (package:devtools_server/src/external_handlers.dart:41:23)
<asynchronous suspension>
#2      serveDevTools (package:devtools_server/src/server.dart:211:21)
#3      serveDevToolsWithArgs (package:devtools_server/src/server.dart:149:10)
#4      main (file:///Users/zaferyasinalemdaroglu/Desktop/Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.4/bin/devtools.dart:9:3)
#5      _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:305:32)
#6      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:174:12)
pub finished with exit code 255

  12. guilazzaris commented on May 6, 2020

    @guilazzaris
    guilazzaris
    on May 6, 2020

    I'm getting the same issue as well.

    ~  flutter pub global list
devtools 0.2.4
~  flutter pub global deactivate devtools
Deactivated package devtools 0.2.4.
~  flutter pub global activate devtools
Resolving dependencies...
+ args 1.6.0
+ async 2.4.1
+ browser_launcher 0.1.5
+ charcode 1.1.3
+ collection 1.14.12
+ convert 2.1.1
+ crypto 2.1.4
+ devtools 0.2.4
+ devtools_server 0.2.4
+ devtools_shared 0.2.4
+ http 0.12.1
+ http_multi_server 2.2.0
+ http_parser 3.1.4
+ intl 0.16.1
+ logging 0.11.4
+ meta 1.1.8
+ mime 0.9.6+3
+ path 1.7.0
+ pedantic 1.9.0
+ shelf 0.7.5
+ shelf_proxy 0.1.0+7
+ shelf_static 0.2.8
+ source_span 1.7.0
+ sse 3.5.0
+ stack_trace 1.9.3
+ stream_channel 2.0.0
+ string_scanner 1.0.5
+ term_glyph 1.1.0
+ typed_data 1.1.6
+ usage 3.4.1
+ uuid 2.0.4
+ vm_service 4.0.2
+ webkit_inspection_protocol 0.5.2
Precompiling executables...
Precompiled devtools:devtools.
Installed executable devtools.
Activated devtools 0.2.4.
~  flutter pub global run devtools
Unhandled exception:
Invalid argument(s): A directory corresponding to fileSystemPath "/Users/gui.lazzaris/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.4/build" could not be found
#0      createStaticHandler (package:shelf_static/src/static_handler.dart:50:5)
#1      defaultHandler (package:devtools_server/src/external_handlers.dart:41:23)
<asynchronous suspension>
#2      serveDevTools (package:devtools_server/src/server.dart:211:21)
#3      serveDevToolsWithArgs (package:devtools_server/src/server.dart:149:10)
#4      main (file:///Users/gui.lazzaris/.pub-cache/hosted/pub.dartlang.org/devtools-0.2.4/bin/devtools.dart:9:3)
#5      _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:305:32)
#6      _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:174:12)
pub finished with exit code 255

  13. suztomo commented on May 6, 2020

    @suztomo
    suztomo
    on May 6, 2020

    I now have the same problem with the same error message: A directory corresponding to fileSystemPath ".../.pub-cache/hosted/pub.dartlang.org/devtools-0.2.4/build" could not be found.

    I use Flutter. So I'll follow flutter/devtools#1915.

  14. DanTup commented on May 6, 2020

    @DanTup
    DanTup
    on May 6, 2020
    Member

    @guilazzaris Looks like you're running flutter pub instead of just pub. See #2398 (comment).

    @suztomo

    I use Flutter. So I'll follow flutter/devtools#1915.

    VS Code always uses DevTools through pub and not flutter pub. The error is because your non-Flutter install of DevTools is damaged. Please follow the instructions above and it will likely resolve your issue.

  15. DanTup commented on May 6, 2020

    @DanTup
    DanTup
    on May 6, 2020
    Member

    For #2430 I've implemented a prompt so if this happens, you can just click and it'll reactivate DevTools:

    Screenshot 2020-05-06 at 16 03 36

    I'm not sure why so many people have hit this - is it possible you've cleared out your pub-cache folders?

    Until the next release, the quick fix is to run pub global activate devtools (note: no flutter at the start).

  16. DanTup
    closed this as completedon May 6, 2020
  17. DanTup
    added
    duplicate
    and removed
    awaiting infoRequires more information from the customer to progress
    on May 6, 2020

  18. crendo commented on Apr 28, 2021

    @crendo
    crendo
    on Apr 28, 2021

    I had this issue. [SOLVED] as follow:

    dart pub cache repair
    dart pub cache add devtools
    dart pub cache repair
    dart pub global activate devtools
    dart pub global run devtools (to check it's working)

  19. fleeser commented on Aug 10, 2021

    @fleeser
    fleeser
    on Aug 10, 2021

    I had this issue. [SOLVED] as follow:

    dart pub cache repair
    dart pub cache add devtools
    dart pub cache repair
    dart pub global activate devtools
    dart pub global run devtools (to check it's working)

    Just don't forget to pub get before. Otherwise you'll get an error.

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