Issue with GitHub Copilot in VS Code when using Git Bash on Windows

[iwangbowen]

Type: Bug

Issue with GitHub Copilot in VS Code when using Git Bash on Windows

When using GitHub Copilot's agent mode in Windows with Git Bash, there's a consistent path format issue. The agent initially uses Windows path format (backslashes) when executing commands involving file paths, which causes errors in Git Bash. Only after failing does it switch to Git Bash compatible paths (forward slashes).

Could this be fixed by either:

1. Making the agent recognize Git Bash environment automatically
2. Adding configuration options to set preferred path format
3. Using special prompt instructions to inform the agent about the correct path format to use

VS Code version: Code - Insiders 1.101.0-insider (496ebc4723371f29c9ffa0319dcccb2d7bee7ee0, 2025-05-21T05:04:29.987Z) OS version: Windows_NT x64 10.0.26100 Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i5-1340P (16 x 2189)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	63.64GB (31.12GB free)
Process Argv	--crash-reporter-id 3df60e69-6e36-46e5-9b3d-020ce9a3ab01
Screen Reader	no
VM	0%

Extensions (147)

Extension	Author (truncated)	Version
better-comments	aar	3.0.2
codesnap	adp	1.3.4
markdown-mermaid	bie	1.28.0
vs-code-bpmn-io	bpm	0.22.1
vscode-tailwindcss	bra	0.14.18
ruff	cha	2025.22.0
npm-intellisense	chr	1.4.5
path-intellisense	chr	2.10.0
vscode-markdownlint	Dav	0.59.0
vscode-eslint	dba	3.0.13
dbcode	dbc	1.13.11
FreeMarker	dco	0.0.9
dingtalk-toolkit	Din	0.2.11
docker	doc	0.6.0
gitlens	eam	2025.5.2105
EditorConfig	Edi	0.17.2
vscode-demo-time	eli	1.3.0
magick-image-reader	ely	0.5.0
prettier-vscode	esb	11.0.0
shell-format	fox	7.2.5
codespaces	Git	1.17.3
copilot	Git	1.322.1576
copilot-chat	Git	0.28.2025052101
remotehub	Git	0.65.2024112101
vscode-github-actions	git	0.27.1
vscode-pull-request-github	Git	0.111.2025052104
gc-excelviewer	Gra	4.2.63
output-colorizer	IBM	0.1.2
icon-fonts	idl	2.5.4
svg	joc	1.5.4
vscode-gutter-preview	kis	0.32.2
vscode-leetcode	Lee	0.18.4
i18n-ally	lok	2.13.1
marp-vscode	mar	3.2.0
rainbow-csv	mec	3.19.0
template-string-converter	meg	0.6.1
git-graph	mhu	1.30.0
dotenv	mik	1.0.1
ecdc	mit	1.8.0
vscode-filesize	mkx	3.2.2
vscode-duplicate	mrm	1.2.1
vscode-containers	ms-	2.0.1
csharp	ms-	2.78.15
dotnet-interactive-vscode	ms-	1.0.6264021
vscode-dotnet-pack	ms-	1.0.13
vscode-dotnet-runtime	ms-	2.3.3
vscode-pgsql	ms-	1.4.1
playwright	ms-	1.1.14
autopep8	ms-	2025.3.11051009
black-formatter	ms-	2025.2.0
debugpy	ms-	2025.9.2025052001
flake8	ms-	2025.3.11051009
gather	ms-	2025.4.0
isort	ms-	2025.1.11191009
mypy-type-checker	ms-	2025.3.11071011
pylint	ms-	2025.3.10971010
python	ms-	2025.7.2025052102
vscode-pylance	ms-	2025.5.100
vscode-python-envs	ms-	0.3.11391010
datawrangler	ms-	1.22.0
jupyter	ms-	2025.5.2025052103
jupyter-hub	ms-	2024.10.1002831100
jupyter-keymap	ms-	1.1.2
jupyter-renderers	ms-	1.1.2025012901
python-ds-extension-pack	ms-	0.0.1
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-powertoys	ms-	0.1.1
vscode-jupyter-slideshow	ms-	0.1.6
remote-containers	ms-	0.414.0
remote-ssh	ms-	0.121.2025050915
remote-ssh-edit	ms-	0.87.0
remote-wsl	ms-	0.99.0
remote-wsl-recommender	ms-	0.0.20
vscode-remote-extensionpack	ms-	0.26.0
cmake-tools	ms-	1.21.27
copilot-mermaid-diagram	ms-	0.0.2025052101
cpptools	ms-	1.25.3
cpptools-extension-pack	ms-	1.3.1
extension-test-runner	ms-	0.0.12
hexeditor	ms-	1.11.1
live-server	ms-	0.5.2025051902
powershell	ms-	2025.3.0
remote-explorer	ms-	0.6.2025051209
remote-repositories	ms-	0.43.2024112101
remote-server	ms-	1.5.2
vscode-copilot-data-analysis	ms-	0.2.2
vscode-github-issue-notebooks	ms-	0.0.130
vscode-serial-monitor	ms-	0.13.250520001
vscode-speech	ms-	0.14.0
vscode-speech-language-pack-zh-cn	ms-	0.5.1
vscode-typescript-next	ms-	5.9.20250514
vscode-websearchforcopilot	ms-	0.1.2025052101
vsliveshare	ms-	1.0.5948
windows-ai-studio	ms-	0.14.0
typescript-explorer	mxs	0.4.2
neo4j-for-vscode	neo	1.11.0
angular-console	nrw	18.49.3
indent-rainbow	ode	8.3.1
vscode-versionlens	pfl	1.22.2
material-icon-theme	PKi	5.23.0
postman-for-vscode	Pos	1.12.0
vscode-css-peek	pra	4.4.3
inline-html	pus	0.3.10
geo-data-viewer	Ran	2.6.0
tmlanguage-syntax-highlighter	Red	2.7.2
java	red	1.42.0
vscode-commons	red	0.0.6
vscode-community-server-connector	red	0.26.19
vscode-rsp-ui	red	0.24.11
vscode-xml	red	0.29.2025051008
vscode-yaml	red	1.18.0
redis-for-vscode	Red	1.2.0
omegasheets-vscode	rep	0.2.0
LiveServer	rit	5.7.9
docxreader	Sha	1.1.3
sonarlint-vscode	Son	4.22.0
code-spell-checker	str	4.1.0
code-spell-checker-cspell-bundled-dictionaries	str	2.0.0
vscode-stylelint	sty	1.5.0
shellcheck	tim	0.37.7
vscode-decompiler	tin	0.1.0
pdf	tom	1.2.2
luna-paint	Tyr	0.16.0
errorlens	use	3.26.0
intellicode-api-usage-examples	Vis	0.2.9
vscodeintellicode	Vis	1.3.2
vscodeintellicode-completions	Vis	2.0.1
explorer	vit	1.18.1
vscode-css-compatibility	viv	1.0.2
vscode-boot-dev-pack	vmw	0.2.2
vscode-spring-boot	vmw	1.62.0
migrate-java-to-azure	vsc	0.3.2025052001
vscode-app-mod-pack	vsc	0.2.0
vscode-java-debug	vsc	0.58.2025042405
vscode-java-dependency	vsc	0.24.1
vscode-java-pack	vsc	0.29.2024091906
vscode-java-test	vsc	0.43.1
vscode-java-upgrade	vsc	0.14.0
vscode-maven	vsc	0.44.2024072906
vscode-spring-initializr	vsc	0.11.2025051201
volar	Vue	2.2.10
vscode-wakatime	Wak	25.0.3
quokka-vscode	Wal	1.0.722
vscode-import-cost	wix	3.3.0
pretty-ts-errors	Yoa	0.6.1
markdown-all-in-one	yzh	3.6.3
material-theme	zhu	3.19.0

(1 theme extensions excluded)

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt551:31249597
vscod805cf:30301675
c4g48928:30535728
a9j8j154:30646983
962ge761:30841072
dsvsc014:30777825
dsvsc015:30821418
h48ei257:31000450
pythontbext0:30879054
cppperfnew:30980852
dwnewjupyter:31046869
pythonrstrctxt:31093868
nativeloc1:31118317
e80f6927:31120813
dwcopilot:31158714
c3hdf307:31184662
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
hdaa2157:31222309
copilot_t_ci:31222730
g012b348:31231168
pythoneinst12:31251391
bgtreat:31252123
c7cif404:31309980
pythonpulldiag:31287486
6gi0g917:31259950
61ibe868:31282443
996jf627:31264550
pythonrdcb7:31268811
usemplatestapi:31297334
8ge78292:31309974
747dc170:31275146
pythonfullctx:31296836
6518g693:31302842
pylancecolor:31288664
generatesymbolt:31280541
convertfstringf:31280702
gendocf:31280703
pylancequickfixt:31311477
18994427:31312178
923gi514:31310909
j97ad248:31306657
a2ijf515:31307742
convertlamdaf:31311570

[iwangbowen]

[meganrogge]

This is working for me on windows, git bash

[Ueland]

I've noticed some kind of related bug using container mode in vscode. When in agent mode, Github Copilot will read and process a given file (on a Ubuntu container), but the updated file will get a path using backslash(as Windows does) instead of slash(as Linux does).

[vs-code-engineering[bot]]

Hey @Tyriar @meganrogge, this issue might need further attention.

@iwangbowen, you can help us out by closing this issue if the problem no longer exists, or adding more information.

[iwangbowen]

Hey @Tyriar @meganrogge, this issue might need further attention.

@iwangbowen, you can help us out by closing this issue if the problem no longer exists, or adding more information.

The issue still exists. When executing commands in agent mode, path format problems still occur from time to time. However, the agent can usually correct the path format in subsequent executions based on the error messages.