My project dosen't open! but vscode is open... why?

user1470 · January 23, 2026, 3:04am

I don’t want to AI chat editor mode.

so, I try to keyboardshortcut delete editor mode.

but, suddenly the project is doesn’t open

C:\lucido\lucidoDevel\gaspi\gaspi2024_www

this project doesn’t open..

wwwwwhhhhyyyyy???

my project very very important!

how to???

bchewy · January 23, 2026, 3:07am

you can switch off editor mode if you dont like it! in cursor on the top right, you can clicko n the settings or cogwheel and then adjust or even set your own layout.

is this what you mean?

user1470 · January 23, 2026, 3:13am

no… my project is never open….
my project doesn’t open…ㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠ

bchewy · January 23, 2026, 3:18am

On windows, you can open folder from top left (or drag and drop the folder you want to open) into cursor to open it!

user1470 · January 23, 2026, 3:21am

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

I don’t want to AI chat editor mode.

so, I try to keyboardshortcut delete editor mode.

but, suddenly the project is doesn’t open

C:\lucido\lucidoDevel\gaspi\gaspi2024_www

this project doesn’t open..

wwwwwhhhhyyyyy???

my project very very important!

how to???

Steps to Reproduce

At keyboardshortcut, I setting composer.openComposer to ctrl+shift+L
and i do ctrl+shift+L
and suddenly the project was loading..
and close and open the project.
but it doesn’t open..

Screenshots / Screen Recordings

 ERR illegalState - setting UNKNOWN service instance: Error: illegalState - setting UNKNOWN service instance
    at lOc._setCreatedServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2221)
    at lOc._createAndCacheServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:4020)
    at lOc._safeCreateAndCacheServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2940)
    at lOc._getOrCreateServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2661)
    at lOc._createInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:1618)
    at lOc.createInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:1454)
    at U4b.createMainTitlebarPart (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35995:75340)
    at new WBc (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35995:28181)
    at new U4b (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35995:75264)
    at lOc._createInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2025)
    at lOc._createServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:5326)
    at lOc._createServiceInstanceWithOwner (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:4215)
    at lOc._createAndCacheServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:3897)
    at lOc._safeCreateAndCacheServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2940)
    at lOc._getOrCreateServiceInstance (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:2661)
    at Object.get (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:1076)
    at NMb.initLayout (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35976:30338)
    at vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35985:1871
    at lOc.invokeFunction (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:34462:960)
    at NMb.startup (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35985:1586)
    at MFb.open (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:35988:130664) Error: illegalState - setting UNKNOWN service instance
    at lOc._setCreatedServiceInstance (workbench.desktop.main.js:34462:2221)
    at lOc._createAndCacheServiceInstance (workbench.desktop.main.js:34462:4020)
    at lOc._safeCreateAndCacheServiceInstance (workbench.desktop.main.js:34462:2940)
    at lOc._getOrCreateServiceInstance (workbench.desktop.main.js:34462:2661)
    at lOc._createInstance (workbench.desktop.main.js:34462:1618)
    at lOc.createInstance (workbench.desktop.main.js:34462:1454)
    at U4b.createMainTitlebarPart (workbench.desktop.main.js:35995:75340)
    at new WBc (workbench.desktop.main.js:35995:28181)
    at new U4b (workbench.desktop.main.js:35995:75264)
    at lOc._createInstance (workbench.desktop.main.js:34462:2025)
    at lOc._createServiceInstance (workbench.desktop.main.js:34462:5326)
    at lOc._createServiceInstanceWithOwner (workbench.desktop.main.js:34462:4215)
    at lOc._createAndCacheServiceInstance (workbench.desktop.main.js:34462:3897)
    at lOc._safeCreateAndCacheServiceInstance (workbench.desktop.main.js:34462:2940)
    at lOc._getOrCreateServiceInstance (workbench.desktop.main.js:34462:2661)
    at Object.get (workbench.desktop.main.js:34462:1076)
    at NMb.initLayout (workbench.desktop.main.js:35976:30338)
    at workbench.desktop.main.js:35985:1871
    at lOc.invokeFunction (workbench.desktop.main.js:34462:960)
    at NMb.startup (workbench.desktop.main.js:35985:1586)
    at MFb.open (workbench.desktop.main.js:35988:130664)

ERR Assertion Failed: Argument is `undefined` or `null`.: Error: Assertion Failed: Argument is `undefined` or `null`.
    at rv (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:29:246)
    at Eu (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:29:1269)
    at xuc.updateStyles (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:33894:32843)
    at xuc.onThemeChange (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:96:27573)
    at lin.value (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:96:27519)
    at Oe._deliver (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:2962)
    at Oe._deliverQueue (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:3053)
    at Oe.fire (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:3390)
    at _dc.applyTheme (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:33973:650)
    at _dc.internalSetColorTheme (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:33971:9480)
    at async Promise.all (index 0) drp: Assertion Failed: Argument is `undefined` or `null`.
    at rv (workbench.desktop.main.js:29:246)
    at Eu (workbench.desktop.main.js:29:1269)
    at xuc.updateStyles (workbench.desktop.main.js:33894:32843)
    at xuc.onThemeChange (workbench.desktop.main.js:96:27573)
    at lin.value (workbench.desktop.main.js:96:27519)
    at Oe._deliver (workbench.desktop.main.js:49:2962)
    at Oe._deliverQueue (workbench.desktop.main.js:49:3053)
    at Oe.fire (workbench.desktop.main.js:49:3390)
    at _dc.applyTheme (workbench.desktop.main.js:33973:650)
    at _dc.internalSetColorTheme (workbench.desktop.main.js:33971:9480)
    at async Promise.all (index 0)
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:35988
handleUnexpectedError	@	workbench.desktop.main.js:35985
(anonymous)	@	workbench.desktop.main.js:35985
onUnexpectedError	@	workbench.desktop.main.js:27
$c	@	workbench.desktop.main.js:22
_deliver	@	workbench.desktop.main.js:49
_deliverQueue	@	workbench.desktop.main.js:49
fire	@	workbench.desktop.main.js:49
applyTheme	@	workbench.desktop.main.js:33973
internalSetColorTheme	@	workbench.desktop.main.js:33971
await in internalSetColorTheme		
(anonymous)	@	workbench.desktop.main.js:33971
(anonymous)	@	workbench.desktop.main.js:53
Promise.then		
queue	@	workbench.desktop.main.js:53
setColorTheme	@	workbench.desktop.main.js:33971
i	@	workbench.desktop.main.js:33971
initialize	@	workbench.desktop.main.js:33971
(anonymous)	@	workbench.desktop.main.js:33971

ERR Error fetching user pricing info: Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:35988
fetchUserPricingInfo	@	workbench.desktop.main.js:35956

ERR Error fetching user privacy mode: Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:35988
(anonymous)	@	workbench.desktop.main.js:35956

  ERR No Connect transport provider registered.: Error: No Connect transport provider registered.
    at lJu.transport (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:645:485600) Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:35988
handleUnexpectedError	@	workbench.desktop.main.js:35985
(anonymous)	@	workbench.desktop.main.js:35985
onUnexpectedError	@	workbench.desktop.main.js:27
$c	@	workbench.desktop.main.js:22
(anonymous)	@	workbench.desktop.main.js:35985

workbench.desktop.main.js:36042 Failed to load team commands: Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
    at async MC.get (workbench.desktop.main.js:645:485404)
    at async RLc.loadTeamCommands (workbench.desktop.main.js:36042:4590)
loadTeamCommands	@	workbench.desktop.main.js:36042

workbench.desktop.main.js:9087 [KnowledgeBaseService] Failed to fetch knowledge: Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
refresh	@	workbench.desktop.main.js:9087

workbench.desktop.main.js:9087 [KnowledgeBaseService Migration] Failed to migrate old user rules: Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
maybeAddOldUserRules	@	workbench.desktop.main.js:9087

ERR No Connect transport provider registered.: Error: No Connect transport provider registered.
    at lJu.transport (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:645:485600)
    at async MC.get (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:645:485404)
    at async l2c.keepCppModelStateUpdated (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:36081:16505)
    at async l2c.loadCppConfigIncludingHandlingProAccess (vscode-file://vscode-app/c:/Users/user/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:36091:1259) Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
    at async MC.get (workbench.desktop.main.js:645:485404)
    at async l2c.keepCppModelStateUpdated (workbench.desktop.main.js:36081:16505)
    at async l2c.loadCppConfigIncludingHandlingProAccess (workbench.desktop.main.js:36091:1259)
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:58
error	@	workbench.desktop.main.js:35988
handleUnexpectedError	@	workbench.desktop.main.js:35985
(anonymous)	@	workbench.desktop.main.js:35985
onUnexpectedError	@	workbench.desktop.main.js:27
$c	@	workbench.desktop.main.js:22
(anonymous)	@	workbench.desktop.main.js:35985

Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
    at async MC.get (workbench.desktop.main.js:645:485404)
    at async JLc.forceRefreshServerConfig (workbench.desktop.main.js:36057:39823)

workbench.desktop.main.js:35956 Error: No Connect transport provider registered.
    at lJu.transport (workbench.desktop.main.js:645:484704)
    at async MC.createSingleServer (workbench.desktop.main.js:645:485600)
    at async MC.get (workbench.desktop.main.js:645:485404)
    at async vKs.authClient (workbench.desktop.main.js:35956:40204)
    at async Vhs.initialRetryTimeMs (workbench.desktop.main.js:35956:22573)
    at async Vhs (workbench.desktop.main.js:645:481748)
    at async workbench.desktop.main.js:35956:22545
(anonymous)	@	workbench.desktop.main.js:35956

Operating System

Windows 10/11

Version Information

Version: 2.4.21 (user setup)
VSCode Version: 1.105.1
Commit: dc8361355d709f306d5159635a677a571b277bc0
Date: 2026-01-22T16:57:59.675Z
Build Type: Stable
Release Track: Default
Electron: 39.2.7
Chromium: 142.0.7444.235
Node.js: 22.21.1
V8: 14.2.231.21-electron.0
OS: Windows_NT x64 10.0.26200

Does this stop you from using Cursor

Yes - Cursor is unusable

xiadengma · January 23, 2026, 3:24am

I registered an account just to reply to you: delete the folder for the corresponding project under ~/.config/Cursor/User/workspaceStorage You can ask GPT for the exact details, but the overall approach is correct.

deanrie · January 23, 2026, 4:29am

Hey, thanks for the report. This is a known issue. The same illegalState - setting UNKNOWN service instance error was mentioned in this thread: Cursor windows app completely blank after loading

Try these options, from easiest to most radical:

Reset keybindings (try this first):

Open File Explorer and go to %APPDATA%\Cursor\User
Find keybindings.json and open it in Notepad
Save a backup, then delete all content and leave only []
Save and try launching Cursor again

Run with flags:

Press Win + R, type cmd, press Enter
Try cursor --disable-gpu or cursor --disable-extensions
If one of the flags helps, the project should open, and then you can update to the latest version

Clear settings (last resort):

Fully close Cursor
Press Win + R, type %APPDATA%, press Enter
Rename the Cursor folder to Cursor_backup in case you need anything from the old settings
Start Cursor again, it will create a fresh folder

Let me know what worked. If the issue is still there, please share the logs from %APPDATA%\Cursor\logs (the latest timestamped folder) so the team can take a deeper look.

user1470 · January 23, 2026, 4:44am

I try to cursor ai chat.

cursor_ide.md → it doesn’t upload. so i edit .md → .txt

cursor_ide.txt (27.6 KB)

cursor_cursor2.txt (13.3 KB)

English (Support request to Cursor team)

Subject: Request for help recovering AI conversation history for workspace after fixing project open failure

Hello Cursor team,

I am writing to ask for help recovering AI conversation history for a specific workspace.

What happened

The project at C:\lucido\lucidoDevel\gaspi\gaspi2024_www suddenly stopped opening in Cursor (it still opened in VS Code). The developer tools showed errors such as illegalState - setting UNKNOWN service instance, Assertion Failed: Argument is undefined or null, and No Connect transport provider registered.
Through troubleshooting, we identified that the problem was related to workspace storage for that path, in particular the state.vscdb file under

C:\Users\user\AppData\Roaming\Cursor\User\workspaceStorage\83b052bcb8d51f54478039d55b83af68.

When that state.vscdb (or the whole workspace storage folder) was removed or replaced, the project at C:\lucido\lucidoDevel\gaspi\gaspi2024_www started opening again in Cursor.
However, all AI conversation history for that workspace is now gone. We understand that this history was stored in state.vscdb (and possibly related files in the same workspace storage folder).

What we are asking

We have backups of the original state.vscdb and the 83b052bcb8d51f54478039d55b83af68 workspace storage folder from before the fix.
We would like to recover the AI conversation history that was associated with C:\lucido\lucidoDevel\gaspi\gaspi2024_www.

Could you please advise:

How we can restore or extract the AI chat/composer history from the backed‑up state.vscdb (or from the backed‑up workspace storage folder) and have it show up again in Cursor for that workspace?
Whether Cursor provides any official tool or documented procedure for importing/restoring workspace-specific AI conversation history from such backups?
The exact storage format used for AI conversations in state.vscdb (e.g. schema, key names, structure), so we can attempt a custom export/import if no official method exists?

We would like to recover the past AI discussions for this project without breaking the current ability to open the workspace. Any guidance or tools you can provide would be greatly appreciated.

Thank you for your help.

system · February 14, 2026, 3:05am

This topic was automatically closed 22 days after the last reply. New replies are no longer allowed.

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