Opening File Diff in Source Control Crashes Microsoft.CodeAnalysis.LanguageServer

[tophattwaffle]

Type: Bug

Issue Description

While working on Unity project, opening a file Diff under source control ends up crashing the Microsoft.CodeAnalysis.LanguageServer and it never restarts until VSCode is closed and reopened.

[LanguageServerHost] System.InvalidOperationException: Unsupported extension '.cs%22,%22ref%22:%22~%22%7D' and LSP language id '' is shown in output.

Steps to Reproduce

Open a C# project
Edit File
View diff under Source Control

Expected Behavior

View Diff without crash

Actual Behavior

Crashes the language server and requires restart

Environment information

VSCode version: 1.91.1
C# Extension: 2.39.29
Using OmniSharp: false

Logs

logs.zip

Dotnet Information

.NET SDK: Version: 7.0.101 Commit: bb24aafa11

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19045
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\7.0.101\

Host:
Version: 8.0.3
Architecture: x64
Commit: 9f4b1f5d66

.NET SDKs installed:
3.1.405 [C:\Program Files\dotnet\sdk]
5.0.102 [C:\Program Files\dotnet\sdk]
5.0.415 [C:\Program Files\dotnet\sdk]
6.0.400 [C:\Program Files\dotnet\sdk]
7.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.All 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.30 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 8.0.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.14 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.10 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 8.0.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
arm64 [C:\Program Files\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\arm64\InstallLocation]
x86 [C:\Program Files (x86)\dotnet]
registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

Visual Studio Code Extensions

Extension	Author	Version	Folder Name
cisco	jamiewoodio	1.9.1	jamiewoodio.cisco-1.9.1
close-all	benjpas	1.0.2	benjpas.close-all-1.0.2
cmake	twxs	0.0.17	twxs.cmake-0.0.17
cmake-tools	ms-vscode	1.18.43	ms-vscode.cmake-tools-1.18.43
code-spell-checker	streetsidesoftware	3.0.1	streetsidesoftware.code-spell-checker-3.0.1
cpptools	ms-vscode	1.21.4	ms-vscode.cpptools-1.21.4-win32-x64
cpptools-extension-pack	ms-vscode	1.3.0	ms-vscode.cpptools-extension-pack-1.3.0
cpptools-themes	ms-vscode	2.0.0	ms-vscode.cpptools-themes-2.0.0
csdevkit	ms-dotnettools	1.8.14	ms-dotnettools.csdevkit-1.8.14-win32-x64
csharp	ms-dotnettools	2.39.29	ms-dotnettools.csharp-2.39.29-win32-x64
csharp-colors	logerfo	0.2.1	logerfo.csharp-colors-0.2.1
csv-to-table	phplasma	1.4.0	phplasma.csv-to-table-1.4.0
debugpy	ms-python	2024.8.0	ms-python.debugpy-2024.8.0-win32-x64
gc-excelviewer	GrapeCity	4.2.59	grapecity.gc-excelviewer-4.2.59
githistory	donjayamanne	0.6.20	donjayamanne.githistory-0.6.20
gitlens	eamodio	15.2.3	eamodio.gitlens-15.2.3
gitless	maattdd	11.7.2	maattdd.gitless-11.7.2
hexeditor	ms-vscode	1.10.0	ms-vscode.hexeditor-1.10.0
isort	ms-python	2023.10.1	ms-python.isort-2023.10.1
jsonviewer	ccimage	1.5.0	ccimage.jsonviewer-1.5.0
jupyter	ms-toolsai	2024.6.0	ms-toolsai.jupyter-2024.6.0-win32-x64
jupyter-keymap	ms-toolsai	1.1.2	ms-toolsai.jupyter-keymap-1.1.2
jupyter-renderers	ms-toolsai	1.0.18	ms-toolsai.jupyter-renderers-1.0.18
makefile-tools	ms-vscode	0.9.10	ms-vscode.makefile-tools-0.9.10
nc-gcode	ML	0.13.0	ml.nc-gcode-0.13.0
platformio-ide	platformio	3.3.3	platformio.platformio-ide-3.3.3-win32-x64
powershell	ms-vscode	2024.2.2	ms-vscode.powershell-2024.2.2
python	ms-python	2024.10.0	ms-python.python-2024.10.0-win32-x64
rainbow-csv	mechatroner	3.12.0	mechatroner.rainbow-csv-3.12.0
remote-explorer	ms-vscode	0.4.3	ms-vscode.remote-explorer-0.4.3
remote-ssh	ms-vscode-remote	0.112.0	ms-vscode-remote.remote-ssh-0.112.0
remote-ssh-edit	ms-vscode-remote	0.86.0	ms-vscode-remote.remote-ssh-edit-0.86.0
sync-scroll	dqisme	1.3.1	dqisme.sync-scroll-1.3.1
todo-tree	Gruntfuggly	0.0.226	gruntfuggly.todo-tree-0.0.226
unity-code-snippets	kleber-swf	2.4.0	kleber-swf.unity-code-snippets-2.4.0
unity-tools	Tobiah	1.2.12	tobiah.unity-tools-1.2.12
vscode-autohotkey-plus-plus	mark-wiemer	5.0.5	mark-wiemer.vscode-autohotkey-plus-plus-5.0.5
vscode-dotnet-runtime	ms-dotnettools	2.1.1	ms-dotnettools.vscode-dotnet-runtime-2.1.1
vscode-electricimp	electricimp	1.0.0	electricimp.vscode-electricimp-1.0.0
vscode-html-css	ecmel	2.0.10	ecmel.vscode-html-css-2.0.10
vscode-jupyter-cell-tags	ms-toolsai	0.1.9	ms-toolsai.vscode-jupyter-cell-tags-0.1.9
vscode-jupyter-slideshow	ms-toolsai	0.1.6	ms-toolsai.vscode-jupyter-slideshow-0.1.6
vscode-pylance	ms-python	2024.7.1	ms-python.vscode-pylance-2024.7.1
vscode-theme-onedark	akamud	2.3.0	akamud.vscode-theme-onedark-2.3.0
vscodeintellicode-csharp	ms-dotnettools	2.1.11	ms-dotnettools.vscodeintellicode-csharp-2.1.11-win32-x64
vsliveshare	ms-vsliveshare	1.0.5936	ms-vsliveshare.vsliveshare-1.0.5936
vstuc	visualstudiotoolsforunity	1.0.2	visualstudiotoolsforunity.vstuc-1.0.2

Extension version: 2.39.29
VS Code version: Code 1.91.1 (f1e16e1e6214d7c44d078b1f0607b2388f29d729, 2024-07-09T22:06:49.809Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 9 5950X 16-Core Processor (32 x 3400)
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
Load (avg)	undefined
Memory (System)	63.92GB (20.82GB free)
Process Argv	D:\TimeTok\TimeTok --crash-reporter-id d85c62b4-766d-4320-86af-a83a95d9ff74
Screen Reader	no
VM	0%

A/B Experiments

vsliv368cf:30146710
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscoreces:30445986
vscod805cf:30301675
binariesv615:30325510
vsaa593:30376534
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
962ge761:30959799
pythongtdpath:30769146
welcomedialog:30910333
pythonnoceb:30805159
asynctok:30898717
pythonregdiag2:30936856
pythonmypyd1:30879173
h48ei257:31000450
pythontbext0:30879054
accentitlementst:30995554
dsvsc016:30899300
dsvsc017:30899301
dsvsc018:30899302
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
0ee40948:31013168
pythoncenvpt:31062603
a69g1124:31058053
dvdeprecation:31068756
dwnewjupyter:31046869
impr_priority:31102340
nativerepl1:31104043
refactort:31101459
ccpltc:31103427
pythonrstrctxt:31103193
1iic9185:31097392
wkspc-onlycs-t:31102394

[dibarbet]

Fixed by dotnet/roslyn#74544, will be available in a prerelease version next week. Will update here once available. As a temporary workaround uncheck this option:

[dibarbet]

FYI - the fix is in the latest prerelease version v2.43.16 (pre-release)