Cannot read properties of undefined (reading 'length')

[vscode-triage-bot]

TypeError: Cannot read properties of undefined (reading 'length')
at S.next in src/vs/base/common/map.ts:104:33
at S.reset in src/vs/base/common/map.ts:93:15
at d._delete in src/vs/base/common/map.ts:529:27
at d._delete in src/vs/base/common/map.ts:577:10
at delete in src/vs/base/common/map.ts:521:15
at <anonymous> in https://vscodeweb.azureedge.net/stable/c722ca6c7eed3d7987c0d5c3df5c45f6b15e77d1/out/vs/workbench/workbench.web.main.js:600:41794
at g.invoke in src/vs/base/common/event.ts:569:17
at c.fire in src/vs/base/common/event.ts:736:15
at B.triggerConfigurationChange in src/vs/workbench/services/configuration/browser/configurationService.ts:949:35
at B.onLocalUserConfigurationChanged in src/vs/workbench/services/configuration/browser/configurationService.ts:698:8

Go to Errors Site

[roblourens]

It looks like you might know about this @jrieken #109343

[bpasero]

This is still showing up:

Deminified Stack
TypeError: Cannot read properties of undefined (reading 'length')
[at C.next in src/vs/base/common/map.ts:104:33](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/map.ts#L104:33)
[at C.reset in src/vs/base/common/map.ts:93:15](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/map.ts#L93:15)
[at o._delete in src/vs/base/common/map.ts:533:27](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/map.ts#L533:27)
[at o._delete in src/vs/base/common/map.ts:581:10](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/map.ts#L581:10)
[at o.delete in src/vs/base/common/map.ts:525:15](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/map.ts#L525:15)
at <anonymous> in out/vs/workbench/workbench.desktop.main.js:598:62270
[at S.invoke in src/vs/base/common/event.ts:622:17](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/event.ts#L622:17)
[at l.deliver in src/vs/base/common/event.ts:824:22](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/event.ts#L824:22)
[at a.fire in src/vs/base/common/event.ts:785:24](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/event.ts#L785:24)
[at O.triggerConfigurationChange in src/vs/workbench/services/configuration/browser/configurationService.ts:1064:35](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/workbench/services/configuration/browser/configurationService.ts#L1064:35)
[at O.onLocalUserConfigurationChanged in src/vs/workbench/services/configuration/browser/configurationService.ts:803:8](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/workbench/services/configuration/browser/configurationService.ts#L803:8)
[at O.reloadLocalUserConfiguration in src/vs/workbench/services/configuration/browser/configurationService.ts:647:9](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/workbench/services/configuration/browser/configurationService.ts#L647:9)
[at async O.writeConfigurationValue in src/vs/workbench/services/configuration/browser/configurationService.ts:1013:6](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/workbench/services/configuration/browser/configurationService.ts#L1013:6)
at async Promise.all (index 0)
[at async Object.J [as settled] in src/vs/base/common/async.ts:1442:18](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/base/common/async.ts#L1442:18)
[at async O.updateValue in src/vs/workbench/services/configuration/browser/configurationService.ts:360:3](https://vscode.dev/github/microsoft/vscode/blob/784b0177c56c607789f9638da7b6bf3230d47a8c/src/vs/workbench/services/configuration/browser/configurationService.ts#L360:3)

[vscodenpa]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for similar existing issues. See also our issue reporting guidelines.

Happy Coding!

[jrieken]

This is still showing up:

Of course - the issue isn't fixed yet 😄