Extension fails to activate locally with Activating extension '...' failed: Failed to fetch.

[leep-frog]

While running an extension locally (through Run And Debug script), I started to encounter the following error:

�[38;5;21m[Extension Host] STOPPED on first line for debugging on port 53183
�[38;5;63m INFO Loading development extension at c:\Users\gleep\OneDrive\Desktop\Coding\vs-code\vs-extension
�[38;5;143m WARN [twxs.cmake]: Cannot register 'cmake.cmakePath'. This property is already registered.
Overwriting grammar scope name to file mapping for scope source.cpp.embedded.macro.
Old grammar file: file:///c%3A/Users/gleep/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/extensions/cpp/syntaxes/cpp.embedded.macro.tmLanguage.json.
New grammar file: file:///c%3A/Users/gleep/.vscode/extensions/jeff-hykin.better-cpp-syntax-1.15.19/autogenerated/cpp.embedded.macro.tmLanguage.json
Overwriting grammar scope name to file mapping for scope source.cpp.
Old grammar file: file:///c%3A/Users/gleep/AppData/Local/Programs/Microsoft%20VS%20Code/resources/app/extensions/cpp/syntaxes/cpp.tmLanguage.json.
New grammar file: file:///c%3A/Users/gleep/.vscode/extensions/jeff-hykin.better-cpp-syntax-1.15.19/autogenerated/cpp.tmLanguage.json


TypeError: Failed to fetch
	at self.fetch (../../../vs/workbench/api/worker/extensionHostWorker.js:78:1898)
	at R._loadCommonJSModule (../../../vs/workbench/api/worker/extensionHostWorker.js:77:63236)
	at async Promise.all (index 0)
	at async g._activate (../../../vs/workbench/api/worker/extensionHostWorker.js:69:8180)
	at async g._waitForDepsThenActivate (../../../vs/workbench/api/worker/extensionHostWorker.js:69:8122)
	at async g._initialize (../../../vs/workbench/api/worker/extensionHostWorker.js:69:7486) {name: 'TypeError', message: 'Activating extension 'testPublisher.testExtension' failed: Failed to fetch.', stack: 'TypeError: Failed to fetch
	at self.fetch (..…ch/api/worker/extensionHostWorker.js:69:7486)'}

The only error message that displays in the window is

Activating extension 'testPublisher.testExtension' failed: Failed to fetch.

This error randomly started happening for me, and doesn't appear to be linked with any of the extension's actual code. Below are fixes I already tried to no avail:

• reverted to earlier commits locally to see if a new commit was the issue
• uninstalled and reinstalled vscode

The issue only seems to point to vscode files unrelated to my extension which I have been unsuccessful in navigating. Does anyone know what might be causing this error?

Any and all help is greatly appreciated!

Other info

• VS Code Version:

> code --version
1.69.2
3b889b090b5ad5793f524b5d1d39fda662b96a2a
x64

• OS Version:

OS Name:	Microsoft Windows 11 Home
Version:		10.0.22000 Build 22000

[leep-frog]

I ended up figuring out the issue. I recently changed the terminal.integrated.defaultProfile.windows setting to an Msys2 MinGW profile. Changing the default profile back to null did the trick.

The following settings also seem to get the job done (see this link for more profile settings/info):

  // The default profile used on Windows. This setting will currently be ignored if either `terminal.integrated.shell.windows` or `terminal.integrated.shellArgs.windows` are set.
  "terminal.integrated.defaultProfile.windows": "MinGW",
  // The terminal profile to use for automation-related terminal usage like tasks and debug. This setting will currently be ignored if #terminal.integrated.automationShell.windows# is set.
  "terminal.integrated.automationProfile.windows": {
    "path": "C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\powershell.exe",
  },