# No composer data handle found

**URL:** <https://forum.cursor.com/t/no-composer-data-handle-found/143715>\
**Category:** Bug Reports\
**Created:** [November 22, 2025, 4:46pm UTC](https://forum.cursor.com/t/no-composer-data-handle-found/143715 "2025-11-22T16:46:10Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![SteveCo](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/steveco/32/14073_2.png) [@SteveCo](https://forum.cursor.com/u/SteveCo)\
**Post date:** [November 22, 2025, 4:46pm UTC](https://forum.cursor.com/t/no-composer-data-handle-found/143715/1 "2025-11-22T16:46:10Z")

</div>

### Where does the bug appear (feature/product)?

Cursor IDE

### Describe the Bug

no composer data handle found

### Steps to Reproduce

Select a pre-existing chat

### Expected Behavior

chat displays

### Operating System

MacOS

### Current Cursor Version (Menu → About Cursor → Copy)

Version: 2.1.19  
VSCode Version: 1.105.1  
Commit: 39a966b4048ef6b8024b27d4812a50d88de29cc0  
Date: 2025-11-21T22:59:02.376Z  
Electron: 37.7.0  
Chromium: 138.0.7204.251  
Node.js: 22.20.0  
V8: 13.8.258.32-electron.0  
OS: Darwin arm64 25.2.0

### Does this stop you from using Cursor

No - Cursor works, but with this issue

---

<div class="post-metadata">

**Author:** ![deanrie](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/deanrie/32/1263_2.png) [@deanrie](https://forum.cursor.com/u/deanrie)\
**Post date:** [November 22, 2025, 5:34pm UTC](https://forum.cursor.com/t/no-composer-data-handle-found/143715/2 "2025-11-22T17:34:17Z")

</div>

Hey, thanks for the report. This looks like a known Composer data integrity issue.

To confirm the diagnosis, please check the Console tab for errors:

- `CMD+Shift+P` → “Developer: Toggle Developer Tools”
- Click the “Console” tab
- Try selecting the problematic chat again
- Share any errors that appear

Important to know:

- Chat history is stored locally (not in the cloud), so recovery options are limited once corruption occurs.
- New chats should work normally.
- Don’t delete the affected chat yet, it may be recoverable after investigation.

Going forward:

- Export important chats regularly: click the three dots at the top of the chat → Export Chat.
- Consider using the SpecStory extension for automatic chat backups.
- Make sure you have enough free disk space before updates, since low disk space is the most common cause of these issues.

Let me know what errors you see in the console.

---

<div class="post-metadata">

**Author:** ![Naman\_Pal](https://avatars.discourse-cdn.com/v4/letter/n/eb8c5e/32.png) [@Naman\_Pal](https://forum.cursor.com/u/Naman_Pal)\
**Post date:** [December 1, 2025, 9:31am UTC](https://forum.cursor.com/t/no-composer-data-handle-found/143715/3 "2025-12-01T09:31:42Z")

</div>

ERR A view with id ‘workbench.panel.aichat.view.d528b005-16ea-4416-852b-cb214ff74d28’ is already registered: Error: A view with id ‘workbench.panel.aichat.view.d528b005-16ea-4416-852b-cb214ff74d28’ is already registered  
at UTl.addViews (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:542:313349)  
at vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:542:311983  
at Array.forEach ()  
at UTl.registerViews2 (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:542:311941)  
at UTl.registerViews (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:542:311877)  
at Mao.swapComposerPaneView (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:7204:35936)  
at Mao.swapComposerView (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:7204:36633)  
at \_C.openComposerImpl (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:7163:12373)  
at async \_C.openComposer (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:7163:10803)  
at async Y (vscode-file://vscode-app/Applications/Cursor.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:6170:29497) Error: A view with id ‘workbench.panel.aichat.view.d528b005-16ea-4416-852b-cb214ff74d28’ is already registered  
at UTl.addViews (workbench.desktop.main.js:542:313349)  
at workbench.desktop.main.js:542:311983  
at Array.forEach ()  
at UTl.registerViews2 (workbench.desktop.main.js:542:311941)  
at UTl.registerViews (workbench.desktop.main.js:542:311877)  
at Mao.swapComposerPaneView (workbench.desktop.main.js:7204:35936)  
at Mao.swapComposerView (workbench.desktop.main.js:7204:36633)  
at \_C.openComposerImpl (workbench.desktop.main.js:7163:12373)  
at async \_C.openComposer (workbench.desktop.main.js:7163:10803)  
at async Y (workbench.desktop.main.js:6170:29497)

---

<div class="post-metadata">

**Author:** ![system](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/system/32/99069_2.png) [@system](https://forum.cursor.com/u/system)\
**Post date:** [December 23, 2025, 9:32am UTC](https://forum.cursor.com/t/no-composer-data-handle-found/143715/4 "2025-12-23T09:32:28Z")

</div>

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