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[VinTiaTun]

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I can no longer use the Copilot plugin in VSCode, but it works fine in the Copilot CLI.

[ludev0]

Have you tried signing out and signing back into GitHub Copilot in VS Code? Sometimes the extension loses authentication and stops working even though Copilot CLI continues to function normally.

What worked for me was checking a few things:

• Making sure the Copilot extension was enabled and up to date
• Reloading the VS Code window (Developer: Reload Window)
• Verifying that I was logged into the correct GitHub account in VS Code
• Checking the Copilot output logs

If it still doesn’t work, reinstalling the Copilot extension can sometimes fix the issue.

[VinTiaTun]

The above operations have all been retried, but the Copilot plugin still doesn't work. Only the Copilot CLI can run normally.

版本: 1.110.1 (user setup)
提交: 61b3d0ab13be7dda2389f1d3e60a119c7f660cc3
日期: 2026-03-06T23:03:27.520Z
Electron: 39.6.0
ElectronBuildId: 13330601
Chromium: 142.0.7444.265
Node.js: 22.22.0
V8: 14.2.231.22-electron.0
OS: Windows_NT x64 10.0.19045

名称: GitHub Copilot Chat
ID: GitHub.copilot-chat
说明: AI chat features powered by Copilot
版本: 0.38.2
发布者: GitHub
VS Marketplace 链接: https://marketplace.visualstudio.com/items?itemName=GitHub.copilot-chat

[xmdltz]

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I can no longer use the Copilot plugin in VSCode, but it works fine in the Copilot CLI.

[ajx-dev]

If Copilot works in the CLI but not in VS Code, that usually means your GitHub account and subscription are fine, and the issue is more likely related to the VS Code extension, authentication, or editor setup.

A few things you could try:

1. Sign out of GitHub inside VS Code and sign in again.
2. Make sure the GitHub Copilot extension is installed, enabled, and fully updated.
3. Reload or restart VS Code after re-authenticating.
4. Check whether the extension is blocked by workspace trust, extension conflicts, or network/proxy settings.
5. Open the Output or Logs panel in VS Code and look for GitHub Copilot related errors.

Since Copilot CLI is working, the problem is probably isolated to the VS Code client rather than your account access. If possible, sharing the screenshot or any error message from VS Code would help narrow it down further.

[VinTiaTun]

The image cannot be uploaded and it keeps showing "Uploading..." without completing.

I checked the logs and found an error in the Copilot Chat extension:

Error:

Uncaught error (1)
TypeError: e is not iterable

Stack trace:

TypeError: e is not iterable
at LTe.setItems (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:19954)
at hd._computeFn (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:19693)
at hd._recompute (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:11922)
at hd.get (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:11256)
at hd.reportChanges (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:497)
at NTe.endUpdate (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:19452)
at Mjt (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:19170)
at hd.recomputeInitiallyAndOnChange (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:1065:1092)
at UT.init (c:\Users\ic.vscode\extensions\github.copilot-chat-0.38.2\dist\extension.js:2673:1654)

It seems related to the Copilot Chat extension (version 0.38.2).

[VinTiaTun]

The problem has been resolved and the root cause was identified.

The error TypeError: e is not iterable was not caused by the Copilot extension version itself. Instead, it was triggered by Copilot Chat's Agent/Skills discovery mechanism.

I had agent skill files created by another AI tool stored in the following directories:

C:\Users\ic\.claude\skills
C:\Users\ic\.agents\skills

GitHub Copilot Chat automatically scans these directories when initializing agent skills. Some of these skill files had duplicate skill names or unsupported formatting (e.g. XML tags). This caused the agent discovery process to return an unexpected value, which eventually triggered the error inside the extension:

TypeError: e is not iterable

Solution

Renaming or removing the following directories fixed the problem:

C:\Users\ic\.claude
C:\Users\ic\.agents

After restarting VS Code, Copilot Chat initialized normally and the error disappeared.

Note

If you encounter the same issue, check whether there are agent skill files from other AI tools inside ~/.claude or ~/.agents. These directories may interfere with Copilot Chat's agent discovery process.