Unable to init server on WSL

[jdan]

Environment

• OS: Windows via WSL
• OS Version: 10
• VS Code Version: 1.51.1
• Racket version: 7.2
• Racket Langserver: checksum 19953f6afda5f8f6b539e88d0c6be57599a8a11f
• Magic Racket version: 0.5.6

Error message

Unable to init server: Could not connect: Connection refused
Gtk initialization failed for display ":0"
  context...:
   "/usr/share/racket/pkgs/gui-lib/mred/private/wx/gtk/queue.rkt": [running body]
   temp37_0
   for-loop
   run-module-instance!125
   for-loop
   [repeats 1 more time]
   run-module-instance!125
   for-loop
   [repeats 1 more time]
   run-module-instance!125
   do-dynamic-require5
   "/usr/share/racket/pkgs/gui-lib/mred/private/wx/platform.rkt": [running body]
   temp37_0
   for-loop
   run-module-instance!125
   for-loop
   ...

Additional context

I am running this in Windows Subsystem Linux 2

Unsure why the langserver needs gtk, maybe that's just racket startup stuff? I'm able to run racket from my terminal without issue

jdan@DAPHNE:~$ racket
Welcome to Racket v7.2.
> (+  3 4)
7
>

[Eugleo]

Hey, next week I'm getting a Windows machine to test Magic Racket on WSL. So, hold on a little longer! In the meantime, check over at racket-langserver if this isn't a well-known problem.

[1gmar]

Hey @jdan, I'm experiencing a similar issue when trying to init server inside a devcontainer.

Have you managed to work around this issue?

Any insight would be highly appreciated.

[jdan]

Nope no dice yet but haven't tried anything fancy :)

[stereobooster]

related #31, jeapostrophe/racket-langserver#18

xvbf is a potential solution here

[Runi-c]

This issue is now tracked at jeapostrophe/racket-langserver#45

[lopezca]

Hello!

Great plugin, thank you!

I also have this issue when trying to run it when there is no display available;
xvfb does work, but the server has to be started beforehand.

would it be possible to add a configuration option to change the command to launch the server?
that way, it can be modified to make it work with xvfb and use it as usual.

cheers!

[HugoBarreto]

Could someone provide the exact steps that you're using to run racket-langserver in WSL?

I'm using VS Code and couldn't figure how to use xvfb in this context.

[SFurnace]

@HugoBarreto @jdan I found a workaround, please see this #51

[Eugleo]

Closing, as there is currently a workaround and the issue itself cannot be fixed on the side of Magic Racket. I will link the workaround from the readme.

[tim-harding]

{
    "magicRacket.languageServer.command": "xvfb-run",
    "magicRacket.languageServer.arguments": [
        "--auto-servernum",
        "racket",
        "--lib",
        "racket-langserver"
    ],
}

This is the configuration that works for me. I had to add --auto-servernum to make the server start up consistently.

[coyorkdow]

Same problem on vscode ssh to a Debian instance and magic-racket extension crashed. Using xvbf works fine to me.

{
    "magicRacket.languageServer.command": "xvfb-run",
    "magicRacket.languageServer.arguments": [
        "--auto-servernum",
        "racket",
        "--lib",
        "racket-langserver"
    ],
}

This is the configuration that works for me. I had to add --auto-servernum to make the server start up consistently.

[jaybonthius]

@tim-harding's solution also worked for me on Ubuntu, after installing xvfb.