"Request textDocument/foldingRange failed" repeatedly pops up.

[james-white-x]

Type: Bug

Issue Description

Constant error popping up saying Request textDocument/foldingRange failed. I am using vscode with Ubuntu 20.04 WSL setup.

Steps to Reproduce

1. Create a brand new blazor app from the cli
   dotnet new blazorwasm -o BlazorServerApp
2. Run project with C#
3. This error starts to pop up
   "Request textDocument/semanticTokens/range failed."
4. Duplicate this div below itself in the /Shared/NavMenu.razor file
   <div class="nav-item px-3"> <NavLink class="nav-link" href="fetchdata"> <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data </NavLink> </div>
5. Now the "Request textDocument/foldingRange failed" repeatedly pops up.

Expected Behavior

Not to constantly have extension errors popping up because it cannot understand the code.

Actual Behavior

"Request textDocument/foldingRange failed" repeatedly pops up.

Logs

C# log

Post the output from Output-->C# here

C# LSP Trace Logs

Post the output from Output-->C# LSP Trace Logs here. Requires `dotnet.server.trace` to be set to `Trace`

Environment information

VSCode version: 1.81.1
C# Extension: 2.0.357
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 7.0.400 Commit: 73bf45718d

Runtime Environment:
OS Name: ubuntu
OS Version: 20.04
OS Platform: Linux
RID: ubuntu.20.04-x64
Base Path: /usr/share/dotnet/sdk/7.0.400/

Host:
Version: 7.0.10
Architecture: x64
Commit: a6dbb800a4

.NET SDKs installed:
7.0.400 [/usr/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 7.0.10 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 7.0.10 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

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
csdevkit	ms-dotnettools	0.3.21	ms-dotnettools.csdevkit-0.3.21-linux-x64
csharp	ms-dotnettools	2.0.357	ms-dotnettools.csharp-2.0.357-linux-x64
git-graph	mhutchie	1.30.0	mhutchie.git-graph-1.30.0
gitflow	vector-of-bool	1.2.1	vector-of-bool.gitflow-1.2.1
githistory	donjayamanne	0.6.20	donjayamanne.githistory-0.6.20
gitlens	eamodio	14.2.1	eamodio.gitlens-14.2.1
mongodb-vscode	mongodb	1.2.0	mongodb.mongodb-vscode-1.2.0
powershell	ms-vscode	2023.6.0	ms-vscode.powershell-2023.6.0
prettier-vscode	esbenp	10.1.0	esbenp.prettier-vscode-10.1.0
python	ms-python	2023.14.0	ms-python.python-2023.14.0
sass-indented	syler	1.8.27	syler.sass-indented-1.8.27
svg	jock	1.5.3	jock.svg-1.5.3
vscode-color-picker	AntiAntiSepticeye	0.0.4	antiantisepticeye.vscode-color-picker-0.0.4
vscode-dotnet-pack	ms-dotnettools	1.0.12	ms-dotnettools.vscode-dotnet-pack-1.0.12
vscode-dotnet-runtime	ms-dotnettools	1.7.0	ms-dotnettools.vscode-dotnet-runtime-1.7.0
vscode-eslint	dbaeumer	2.4.2	dbaeumer.vscode-eslint-2.4.2
vscode-html-css	ecmel	1.13.1	ecmel.vscode-html-css-1.13.1
vscode-import-cost	wix	3.3.0	wix.vscode-import-cost-3.3.0
vscode-lottie	lottiefiles	1.0.5	lottiefiles.vscode-lottie-1.0.5
vscode-pylance	ms-python	2023.8.20	ms-python.vscode-pylance-2023.8.20
vscode-react-native	msjsdiag	1.11.2	msjsdiag.vscode-react-native-1.11.2
vscode-yaml	redhat	1.14.0	redhat.vscode-yaml-1.14.0
vscodeintellicode-csharp	ms-dotnettools	0.1.26	ms-dotnettools.vscodeintellicode-csharp-0.1.26-linux-x64

Extension version: 2.0.357
VS Code version: Code 1.81.1 (6c3e3dba23e8fadc360aed75ce363ba185c49794, 2023-08-09T22:22:42.175Z)
OS version: Windows_NT x64 10.0.19045
Modes:
Remote OS version: Linux x64 5.15.90.1-microsoft-standard-WSL2

System Info

Item	Value
CPUs	AMD Ryzen 7 Microsoft Surface (R) Edition (16 x 1996)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off 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 video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.45GB (4.39GB free)
Process Argv	--folder-uri=vscode-remote://wsl+Ubuntu/home/james/repos/FirstBlazorApp --remote=wsl+Ubuntu --crash-reporter-id f28b5a18-e7d9-4c97-873a-6695beca75bd
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu
OS	Linux x64 5.15.90.1-microsoft-standard-WSL2
CPUs	AMD Ryzen 7 Microsoft Surface (R) Edition (16 x 1996)
Memory (System)	7.49GB (4.45GB free)
VM	0%

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[dibarbet]

Transferring over to Razor

[allisonchou]

@james-white-x A new version of the C# extension was released a few hours ago that we think fixes this issue (2.0.376). Can you update and let us know if the issue reproduces?

[james-white-x]

The new update has solved the issue. Thanks

[davidwengier]

Thanks for checking @james-white-x, I'll go ahead and close this issue.

[MrJackWilson]

I'm still getting this error using the new extension version. The full error is:

Request textDocument/foldingRange failed.
  Message: Error writing JSON RPC Message: ArgumentOutOfRangeException: Specified argument was out of the range of valid values. (Parameter 'index')

I'm getting this error in an empty cshtml file. Whenever I type something it pops up.

[davidwengier]

Thanks @MrJackWilson. Do things work any better after closing open razor/cshtml documents, then using the Reload Window command, and trying again?

I'm hopeful that #9134 will fix the remaining issues with the code folding error popup.

[MrJackWilson]

I've disabled and reenabled the C# Dev Kit a few times now, it seems to be working, but I'll let you know if it stops again.