C# Dev Kit issue where you cannot create a C# class with a template

Type: Bug

## Issue Description ##
C# Dev Kit issue where you cannot create a C# class with a template
## Steps to Reproduce ##
Create new file under C# project folder
## Expected Behavior ##
VS Code supposed to show the available template for C# class, e.g a controller or a class or an interface, etc.
## Actual Behavior ##
just created a black file without .cs extension



Extension version: 2.140.8
VS Code version: Code 1.120.0 (0958016b2af9f09bb4257e0df4a95e2f90590f9f, 2026-05-12T20:17:22Z)
OS version: Windows_NT x64 10.0.19045
Modes:

### Logs ###


### C# log ###
<details>

```
2026-06-02 10:46:00.350 [info] Installing C# dependencies...
2026-06-02 10:46:00.350 [info] 

2026-06-02 10:46:00.350 [info] Platform: win32, x86_64

2026-06-02 10:46:00.350 [info] 

2026-06-02 10:46:00.350 [info] Downloading package 'Language server for Roslyn Copilot integration' 
2026-06-02 10:46:01.575 [info] (47 KB)
2026-06-02 10:46:01.575 [info] .......
2026-06-02 10:46:01.747 [info] .......
2026-06-02 10:46:01.755 [info] ......
2026-06-02 10:46:01.755 [info] Done!

2026-06-02 10:46:01.757 [info] Validating download...

2026-06-02 10:46:01.757 [info] Integrity Check succeeded.

2026-06-02 10:46:01.757 [info] Installing package 'Language server for Roslyn Copilot integration'

2026-06-02 10:46:01.757 [info] 

2026-06-02 10:46:01.778 [info] Downloading package 'VSWebAssemblyBridge (Platform Agnostic)' 
2026-06-02 10:46:04.187 [info] Failed at stage: downloadPackage

2026-06-02 10:46:04.187 [info] Error: connect ECONNREFUSED 20.209.142.129:443

2026-06-02 10:46:04.187 [info] 

2026-06-02 10:46:05.011 [info] Locating .NET runtime version 10.0.5
2026-06-02 10:46:05.175 [info] Dotnet path: C:\Program Files\dotnet\dotnet.exe
2026-06-02 10:46:05.176 [info] Activating C# + C# Dev Kit...
2026-06-02 10:46:05.507 [info] info: Program[0]
2026-06-02 10:46:05.508 [info] Server started with process ID 7280
2026-06-02 10:46:08.637 [info] [Program] Language server initialized
2026-06-02 10:46:08.661 [info] [Program] Monitoring client process 14804 for exit
2026-06-02 10:46:09.947 [info] [initialized] [Microsoft.CodeAnalysis.LanguageServer.FileBasedPrograms.FileBasedProgramsEntryPointDiscovery] Finished discovery in 'c:\Users\naymy\source\repos\ConsoleApp2' in 11 milliseconds

```
</details>

### C# LSP Trace Logs log ###
<details>

```

```
</details>



## Environment Information ##
**VSCode version**: 1.120.0
**C# Extension**: 2.140.8
**Using OmniSharp**: false


<details><summary>Dotnet Information</summary>
.NET SDK:
 Version: 10.0.108
 Commit: 94ea82652c
 Workload version: 10.0.100-manifests.b47d7e23
 MSBuild version: 18.0.11+94ea82652

Runtime Environment:
 OS Name: Windows
 OS Version: 10.0.19045
 OS Platform: Windows
 RID: win-x64
 Base Path: C:\Program Files\dotnet\sdk\10.0.108\

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
 Version: 10.0.8
 Architecture: x64
 Commit: 94ea82652c

.NET SDKs installed:
 2.1.505 [C:\Program Files\dotnet\sdk]
 2.1.700 [C:\Program Files\dotnet\sdk]
 8.0.206 [C:\Program Files\dotnet\sdk]
 8.0.421 [C:\Program Files\dotnet\sdk]
 9.0.314 [C:\Program Files\dotnet\sdk]
 10.0.108 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
 Microsoft.AspNetCore.All 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
 Microsoft.AspNetCore.All 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
 Microsoft.AspNetCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.AspNetCore.App 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.AspNetCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.AspNetCore.App 8.0.27 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.AspNetCore.App 9.0.16 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.AspNetCore.App 10.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
 Microsoft.NETCore.App 2.1.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.NETCore.App 2.1.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.NETCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.NETCore.App 8.0.27 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.NETCore.App 9.0.16 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.NETCore.App 10.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
 Microsoft.WindowsDesktop.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
 Microsoft.WindowsDesktop.App 8.0.27 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
 Microsoft.WindowsDesktop.App 9.0.16 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
 Microsoft.WindowsDesktop.App 10.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
 x86 [C:\Program Files (x86)\dotnet]
 registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
 DOTNET_CLI_UI_LANGUAGE [en-US]

global.json file:
 Not found

Learn more:
 https://aka.ms/dotnet/info

Download .NET:
 https://aka.ms/dotnet/download
</details>
<details><summary>Visual Studio Code Extensions</summary>

|Extension|Author|Version|Folder Name|
|---|---|---|---|
|better-comments|aaron-bond|3.0.2|aaron-bond.better-comments-3.0.2|
|csdevkit|ms-dotnettools|3.20.199|ms-dotnettools.csdevkit-3.20.199-win32-x64|
|csharp|ms-dotnettools|2.140.8|ms-dotnettools.csharp-2.140.8-win32-x64|
|data-workspace-vscode|ms-mssql|0.6.3|ms-mssql.data-workspace-vscode-0.6.3|
|gitlens|eamodio|18.0.0|eamodio.gitlens-18.0.0|
|material-icon-theme|PKief|5.35.0|pkief.material-icon-theme-5.35.0|
|mssql|ms-mssql|1.42.2|ms-mssql.mssql-1.42.2|
|ng-template|Angular|21.2.4|angular.ng-template-21.2.4|
|prettier-vscode|esbenp|12.4.0|esbenp.prettier-vscode-12.4.0|
|remote-wsl|ms-vscode-remote|0.104.3|ms-vscode-remote.remote-wsl-0.104.3|
|sql-bindings-vscode|ms-mssql|0.4.1|ms-mssql.sql-bindings-vscode-0.4.1|
|sql-database-projects-vscode|ms-mssql|1.5.9|ms-mssql.sql-database-projects-vscode-1.5.9|
|todo-tree|Gruntfuggly|0.0.226|gruntfuggly.todo-tree-0.0.226|
|vscode-azureappservice|ms-azuretools|0.27.0|ms-azuretools.vscode-azureappservice-0.27.0|
|vscode-azureresourcegroups|ms-azuretools|0.12.5|ms-azuretools.vscode-azureresourcegroups-0.12.5|
|vscode-containers|ms-azuretools|2.4.5|ms-azuretools.vscode-containers-2.4.5|
|vscode-dotnet-pack|ms-dotnettools|1.0.13|ms-dotnettools.vscode-dotnet-pack-1.0.13|
|vscode-dotnet-runtime|ms-dotnettools|3.0.2|ms-dotnettools.vscode-dotnet-runtime-3.0.2|
|vscode-eslint|dbaeumer|3.0.24|dbaeumer.vscode-eslint-3.0.24|
|vscode-nuget-gallery|patcx|1.2.6|patcx.vscode-nuget-gallery-1.2.6|
|vscode-sqlite|alexcvzz|0.14.1|alexcvzz.vscode-sqlite-0.14.1|
|vscode-tailwindcss|bradlc|0.14.29|bradlc.vscode-tailwindcss-0.14.29|;

</details>
<details><summary>C# Settings</summary>

|Setting|Value|
|---|---|
|preferCSharpExtension|false|
|compilerDiagnosticScope|openFiles|
|analyzerDiagnosticScope|openFiles|
|enableXamlTools|true|
|useServerGC|true|;

</details>
<details>
<summary>System Info</summary>

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i5-7300U CPU @ 2.60GHz (4 x 2712)|
|GPU Status|2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0x5916 [Intel(R) HD Graphics 620], DRIVER_VENDOR=Intel, DRIVER_VERSION=27.20.100.8682 *ACTIVE* GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.19041.5794 Machine model name: Machine model version: 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 trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|7.92GB (1.69GB free)|
|Process Argv|--crash-reporter-id a1a80079-964e-4eb3-ac19-4d5d91cdb616|
|Screen Reader|no|
|VM|0%|
</details><details>
<summary>A/B Experiments</summary>

```
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
6abeh943:31336334
envsdeactivate2:31505458
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ec5jj548:31422691
cp_cls_c_966_ss:31454199
inlinechat_v2_hd992725:31505030
4je02754:31466945
8hhj4413:31478653
38bie571_auto:31426784
cp_cls_t_1081:31454832
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
c9b86496:31447327
idci7584:31464702
e3e4d672:31494082
ei9d7968:31496641
chat:31457767
7e187181:31503455
ghj88844:31499326
ec1eg703:31520046
ddid_c:31478207
hmra_i5g22:31518061
getcmakediagnosticsoff:31489825
7df3h592:31512476
cp_cls_t_1082:31516087
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_c_632:31517842
b1ei0813:31506238
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
31fi7170_t:31522396
jh5f2457_c:31515489
nes-gb-6k:31521375

```

</details>

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C# Dev Kit issue where you cannot create a C# class with a template #9375

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

C# LSP Trace Logs log

Environment Information

Metadata

Assignees

Labels

Type

Fields

Projects

Milestone

Relationships

Development

Extension	Author	Version	Folder Name
better-comments	aaron-bond	3.0.2	aaron-bond.better-comments-3.0.2
csdevkit	ms-dotnettools	3.20.199	ms-dotnettools.csdevkit-3.20.199-win32-x64
csharp	ms-dotnettools	2.140.8	ms-dotnettools.csharp-2.140.8-win32-x64
data-workspace-vscode	ms-mssql	0.6.3	ms-mssql.data-workspace-vscode-0.6.3
gitlens	eamodio	18.0.0	eamodio.gitlens-18.0.0
material-icon-theme	PKief	5.35.0	pkief.material-icon-theme-5.35.0
mssql	ms-mssql	1.42.2	ms-mssql.mssql-1.42.2
ng-template	Angular	21.2.4	angular.ng-template-21.2.4
prettier-vscode	esbenp	12.4.0	esbenp.prettier-vscode-12.4.0
remote-wsl	ms-vscode-remote	0.104.3	ms-vscode-remote.remote-wsl-0.104.3
sql-bindings-vscode	ms-mssql	0.4.1	ms-mssql.sql-bindings-vscode-0.4.1
sql-database-projects-vscode	ms-mssql	1.5.9	ms-mssql.sql-database-projects-vscode-1.5.9
todo-tree	Gruntfuggly	0.0.226	gruntfuggly.todo-tree-0.0.226
vscode-azureappservice	ms-azuretools	0.27.0	ms-azuretools.vscode-azureappservice-0.27.0
vscode-azureresourcegroups	ms-azuretools	0.12.5	ms-azuretools.vscode-azureresourcegroups-0.12.5
vscode-containers	ms-azuretools	2.4.5	ms-azuretools.vscode-containers-2.4.5
vscode-dotnet-pack	ms-dotnettools	1.0.13	ms-dotnettools.vscode-dotnet-pack-1.0.13
vscode-dotnet-runtime	ms-dotnettools	3.0.2	ms-dotnettools.vscode-dotnet-runtime-3.0.2
vscode-eslint	dbaeumer	3.0.24	dbaeumer.vscode-eslint-3.0.24
vscode-nuget-gallery	patcx	1.2.6	patcx.vscode-nuget-gallery-1.2.6
vscode-sqlite	alexcvzz	0.14.1	alexcvzz.vscode-sqlite-0.14.1
vscode-tailwindcss	bradlc	0.14.29	bradlc.vscode-tailwindcss-0.14.29

Setting	Value
preferCSharpExtension	false
compilerDiagnosticScope	openFiles
analyzerDiagnosticScope	openFiles
enableXamlTools	true
useServerGC	true

Item	Value
CPUs	Intel(R) Core(TM) i5-7300U CPU @ 2.60GHz (4 x 2712)
GPU Status	2d_canvas: enabled GPU0: VENDOR= 0x8086, DEVICE=0x5916 [Intel(R) HD Graphics 620], DRIVER_VENDOR=Intel, DRIVER_VERSION=27.20.100.8682 ACTIVE GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.19041.5794 Machine model name: Machine model version: 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 trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	7.92GB (1.69GB free)
Process Argv	--crash-reporter-id a1a80079-964e-4eb3-ac19-4d5d91cdb616
Screen Reader	no
VM	0%

C# Dev Kit issue where you cannot create a C# class with a template #9375

Description

Issue Description

Steps to Reproduce

Expected Behavior

Actual Behavior

Logs

C# log

C# LSP Trace Logs log

Environment Information

Metadata

Metadata

Assignees

Labels

Type

Fields

Projects

Milestone

Relationships

Development

Issue actions