Where does the bug appear (feature/product)?
Cursor IDE
Describe the Bug
Listener leak errors absolutely obliterating network
Steps to Reproduce
Run Cursor (in a dotnet sln maybe?)
Expected Behavior
It doesn’t open a bajillion websockets
Operating System
Windows 10/11
Current Cursor Version (Menu → About Cursor → Copy)
Version: 1.7.54 (user setup)
VSCode Version: 1.99.3
Commit: 5c17eb2968a37f66bc6662f48d6356a100b67be0
Date: 2025-10-21T19:07:38.476Z
Electron: 34.5.8
Chromium: 132.0.6834.210
Node.js: 20.19.1
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.22631
For AI issues: which model did you use?
claude-4.5-sonnet-thinking
For AI issues: add Request ID with privacy disabled
All of 'em
Additional Information
2025-10-22 13:37:31.064 [info] [Window] [composer.environmentInfo] worktreePath undefined
2025-10-22 13:38:07.462 [error] [Window] [051] potential listener LEAK detected, having 270 listeners already. MOST frequent listener (64):: Error
at Guc.create (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47:12844)
at vde._event [as event] (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:1650)
at vde.onFirstObserverAdded (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:51:60809)
at vde.addObserver (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:51:41858)
at Object.onWillAddFirstListener (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47:10614)
at OOt._event [as onDidChange] (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:1917)
at new jN (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:280:9727)
at S2r._createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:2025)
at S2r.createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:1454)
at ycr._createModelData (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:2945:2520)
at ycr.createModel (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:2946:1245)
at Rn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27026)
at vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27471 [051] potential listener LEAK detected, having 270 listeners already. MOST frequent listener (64):
2025-10-22 13:38:07.794 [error] [Window] [237] potential listener LEAK detected, having 278 listeners already. MOST frequent listener (45):: Error
at Guc.create (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47:12844)
at HDr._event (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:1650)
at Object.X [as runAndSubscribe] (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47:10454)
at new ftn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:98:4106)
at S2r._createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:2025)
at S2r.createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:1454)
at new Wtn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:246:6756)
at S2r._createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:2025)
at S2r.createInstance (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:8194:1454)
at Vtn._instantiateEditContext (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:252:8734)
at new Vtn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:252:4580)
at L0._createView (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:293:22417)
at L0._attachModel (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:293:20290)
at L0.setModel (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:293:536)
at Rn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27081)
at vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27471 [237] potential listener LEAK detected, having 278 listeners already. MOST frequent listener (45):
2025-10-22 13:38:41.134 [info] [Window] [composer.environmentInfo] workspaceFolders [{“uri”:{“$mid”:1,“fsPath”:“c:\Games\the-atelier”,“_sep”:1,“external”:“file:///c%3A/Games/the-atelier”,“path”:“/c:/Games/the-atelier”,“scheme”:“file”},“name”:“the-atelier”,“index”:0}]
2025-10-22 13:38:41.134 [info] [Window] [composer.environmentInfo] worktreePath undefined
2025-10-22 13:38:56.676 [info] [Window] [composer.environmentInfo] workspaceFolders [{“uri”:{“$mid”:1,“fsPath”:“c:\Games\the-atelier”,“_sep”:1,“external”:“file:///c%3A/Games/the-atelier”,“path”:“/c:/Games/the-atelier”,“scheme”:“file”},“name”:“the-atelier”,“index”:0}]
2025-10-22 13:38:56.677 [info] [Window] [composer.environmentInfo] worktreePath undefined
2025-10-22 13:39:09.984 [error] [Window] [054] potential listener LEAK detected, having 628 listeners already. MOST frequent listener (103):: Error
at Guc.create (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:47:12844)
at Tcr._event (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:1650)
at vir (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:7249:14164)
at a (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:7249:11454)
at cEt.value (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:7249:11720)
at _e._deliver (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:2962)
at _e._deliverQueue (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:3053)
at _e.fire (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:49:3390)
at ycr.createModel (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:2946:1328)
at Rn (vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27026)
at vscode-file://vscode-app/c:/Users/jeffr/AppData/Local/Programs/cursor/resources/app/out/vs/workbench/workbench.desktop.main.js:6697:27471 [054] potential listener LEAK detected, having 628 listeners already. MOST frequent listener (103):
Does this stop you from using Cursor
Yes - Cursor is unusable