Markdown Language server does not start

[lafe]

Type: Bug

• Start VS Code
• Open Markdown file
• See crash notifications on the lower right side

The Markdown language server has the following output (last repetition only):

Node.js v22.22.1
[Info  - 9:43:48 AM] Connection to server got closed. Server will restart.
[Error - 9:43:48 AM] Server initialization failed.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Error - 9:43:48 AM] Markdown Language Server client: couldn't create connection to server.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Error - 9:43:48 AM] Restarting server failed
  Message: Pending response rejected since connection got disposed
  Code: -32097 
node:internal/modules/cjs/loader:1393
  throw err;
  ^

Error: Cannot find module '@vscode/l10n'
Require stack:
- c:\Users\LFernhomberg\AppData\Local\Programs\Microsoft VS Code Insiders\a08b83eb65\resources\app\extensions\markdown-language-features\dist\serverWorkerMain.js
    at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
    at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
    at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
    at Module._load (node:internal/modules/cjs/loader:1199:37)
    at c._load (node:electron/js2c/node_init:2:18041)
    at TracingChannel.traceSync (node:diagnostics_channel:328:14)
    at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
    at Module.require (node:internal/modules/cjs/loader:1470:12)
    at require (node:internal/modules/helpers:147:16)
    at Object.<anonymous> (c:\Users\LFernhomberg\AppData\Local\Programs\Microsoft VS Code Insiders\a08b83eb65\resources\app\extensions\markdown-language-features\dist\serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'c:\\Users\\LFernhomberg\\AppData\\Local\\Programs\\Microsoft VS Code Insiders\\a08b83eb65\\resources\\app\\extensions\\markdown-language-features\\dist\\serverWorkerMain.js'
  ]
}

Node.js v22.22.1
[Error - 9:43:49 AM] The Markdown Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 9:43:49 AM] Server initialization failed.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Error - 9:43:49 AM] Markdown Language Server client: couldn't create connection to server.
  Message: Pending response rejected since connection got disposed
  Code: -32097 
[Error - 9:43:49 AM] Restarting server failed
  Message: Pending response rejected since connection got disposed
  Code: -32097 

I performed an Extension Bisect to see if one of my extensions caused the issue. The issue occurred even if all extensions were disabled.

VS Code version: Code - Insiders 1.119.0-insider (a08b83e, 2026-04-29T06:26:08+02:00)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

Item	Value
CPUs	AMD Ryzen AI 7 PRO 350 w/ Radeon 860M (16 x 1996)
GPU Status	2d_canvas: unavailable_software GPU0: VENDOR= 0xffff [Google Inc. (Google)], DEVICE=0xffff [ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver-5.0.0)], DRIVER_VENDOR=SwANGLE, DRIVER_VERSION=5.0.0 ACTIVE Machine model name: Machine model version: direct_rendering_display_compositor: disabled_off_ok gpu_compositing: disabled_software multiple_raster_threads: enabled_on opengl: disabled_off rasterization: disabled_software raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: disabled_software video_encode: disabled_software webgl: unavailable_software webgl2: unavailable_software webgpu: unavailable_software webnn: unavailable_software
Load (avg)	undefined
Memory (System)	59.65GB (25.10GB free)
Process Argv
Screen Reader	no
VM	0%

[andrew-sz]

I have seem like the exact seem issue on Mac OSX Sequoia:

System/VSCode Info:
Version: 1.119.0-insider (Universal)
Commit: a08b83e
Date: 2026-04-29T06:26:08+02:00
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin x64 24.6.0

Output:

node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 4:01:56 PM] Connection to server got closed. Server will restart.
[Error - 4:01:56 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:56 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 4:01:56 PM] Connection to server got closed. Server will restart.
[Error - 4:01:56 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:56 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 4:01:57 PM] Connection to server got closed. Server will restart.
[Error - 4:01:57 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:57 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:57 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 4:01:58 PM] Connection to server got closed. Server will restart.
[Error - 4:01:58 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:58 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:58 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Error - 4:01:59 PM] The Markdown Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 4:01:59 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:59 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 4:01:59 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097

[andrew-sz]

I tried disabling all extensions, restarting vs-code insiders. Same behavior for the Markdown but with extensions disabled VS-Code Insiders fails to resolve shell in addition to the markdown language server issue. I re-enabled extensions just so I can work.

[laipeng101]

same issue
版本: 1.119.0-insider (user setup)
提交: a08b83e
日期: 2026-04-29T06:26:08+02:00
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.19045

[MrKapocsDiligent]

Same issue

Version: 1.119.0-insider (user setup)
Commit: a08b83e
Date: 2026-04-29T06:26:08+02:00
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.22631

[sharmashivanand]

same issue.

uname -a
Linux ubuntu-sharmas 6.17.0-22-generic #22-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 13 12:04:44 UTC 2026 x86_64 GNU/Linux

Version: 1.119.0-insider
Commit: a08b83eb658dfec5c3a3f58205baab93bc3ce7af
Date: 2026-04-29T06:26:08+02:00
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Linux x64 6.17.0-22-generic

[Nick2bad4u]

Same issue here - another case for Microsoft to harden their release process with smoke tests...

[JDUXer]

same issue in latest update:

Version: 1.119.0-insider (Universal)
Commit: 129ffab
Date: 2026-04-29T09:58:45-07:00
Electron: 39.8.8
ElectronBuildId: 13870025
Chromium: 142.0.7444.265
Node.js: 22.22.1
V8: 14.2.231.22-electron.0
OS: Darwin arm64 24.6.0

---

node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 2:51:07 PM] Connection to server got closed. Server will restart.
[Error - 2:51:07 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:07 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 2:51:07 PM] Connection to server got closed. Server will restart.
[Error - 2:51:07 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:07 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 2:51:08 PM] Connection to server got closed. Server will restart.
[Error - 2:51:08 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Info - 2:51:08 PM] Connection to server got closed. Server will restart.
[Error - 2:51:08 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
node:internal/modules/cjs/loader:1393
throw err;
^

Error: Cannot find module '@vscode/l10n'
Require stack:

• /Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1390:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1032:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1037:22)
  at Module._load (node:internal/modules/cjs/loader:1199:37)
  at c._load (node:electron/js2c/node_init:2:18041)
  at TracingChannel.traceSync (node:diagnostics_channel:328:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
  at Module.require (node:internal/modules/cjs/loader:1470:12)
  at require (node:internal/modules/helpers:147:16)
  at Object. (/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js:24:20) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
  '/Applications/Visual Studio Code - Insiders.app/Contents/Resources/app/extensions/markdown-language-features/dist/serverWorkerMain.js'
  ]
  }

Node.js v22.22.1
[Error - 2:51:08 PM] The Markdown Language Server server crashed 5 times in the last 3 minutes. The server will not be restarted. See the output for more information.
[Error - 2:51:08 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Markdown Language Server client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:51:08 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097