[BUG] Dev Kit Not Working Properly With multiple projects in folders

[dibarbet]

Describe the Issue

Copied from dotnet/vscode-csharp#6596, originally filed by @thndgonz

Issue Description

I have multiple .csproj in a workspace. When I first installed Dev Kit it seems to have processed only one folder in which it added a SLN file.

The language server starts failing with the other folders.

Steps to Reproduce

Not sure if it matters (as in OS oriented)
Have ubuntu/any other distro.
Open Visual Studio Code
Add several project folders with their respective csproj file to your workspace (do not add any project with a SLN, for reproduction purposes)
Install C# Dev Kit.
Notice that Dev Kit will add only one SLN.
Notice that the syntax highlighting and autocomplete starts failing when you switch over to different *.cs files in the editor.

Expected Behavior

Dev Kit or the language server doesn't "choke" when each csproj doesn't have a SLN. Autocomplete and syntax highlighting works.

Actual Behavior

Dev Kit enabled and/or SLN existing in a folder causes a lot of heartburns for the language server apparently. Disabling syntax highlighting and autocomplete.

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: 1.83.1
C# Extension: 2.7.25
Using OmniSharp: false

Dotnet Information

.NET SDK: Version: 7.0.113 Commit: e24ee34c8e

Runtime Environment:
OS Name: arch
OS Version:
OS Platform: Linux
RID: arch-x64
Base Path: /usr/share/dotnet/sdk/7.0.113/

Host:
Version: 7.0.13
Architecture: x64
Commit: 3f73a2f186

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

.NET runtimes installed:
Microsoft.AspNetCore.App 7.0.13 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 7.0.13 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
DOTNET_ROOT [/usr/share/dotnet]

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
blazorwasm-companion	ms-dotnettools	1.1.4	ms-dotnettools.blazorwasm-companion-1.1.4
codesnap	adpyke	1.3.4	adpyke.codesnap-1.3.4
csharp	ms-dotnettools	2.7.25	ms-dotnettools.csharp-2.7.25-linux-x64
es7-react-js-snippets	dsznajder	4.4.3	dsznajder.es7-react-js-snippets-4.4.3
gulptasks	nickdodd79	1.3.1	nickdodd79.gulptasks-1.3.1
html-entities	christopherstyles	1.1.2	christopherstyles.html-entities-1.1.2
isort	ms-python	2023.10.1	ms-python.isort-2023.10.1
lipsum-generator	MrAwesomeRocks	1.2.3	mrawesomerocks.lipsum-generator-1.2.3
mysql-syntax	jakebathman	1.3.1	jakebathman.mysql-syntax-1.3.1
nginx-formatter	raynigon	0.0.13	raynigon.nginx-formatter-0.0.13
npm-intellisense	christian-kohler	1.4.5	christian-kohler.npm-intellisense-1.4.5
path-intellisense	christian-kohler	2.8.5	christian-kohler.path-intellisense-2.8.5
php-debug	xdebug	1.33.1	xdebug.php-debug-1.33.1
powershell	ms-vscode	2023.8.0	ms-vscode.powershell-2023.8.0
python	ms-python	2023.18.0	ms-python.python-2023.18.0
remote-containers	ms-vscode-remote	0.315.1	ms-vscode-remote.remote-containers-0.315.1
remote-ssh	ms-vscode-remote	0.106.5	ms-vscode-remote.remote-ssh-0.106.5
remote-ssh-edit	ms-vscode-remote	0.86.0	ms-vscode-remote.remote-ssh-edit-0.86.0
remote-wsl	ms-vscode-remote	0.81.8	ms-vscode-remote.remote-wsl-0.81.8
remove-tabs-on-save	redlin	1.2.4	redlin.remove-tabs-on-save-1.2.4
tailwind-docs	austenc	2.1.0	austenc.tailwind-docs-2.1.0
tailwindshades	bourhaouta	0.0.5	bourhaouta.tailwindshades-0.0.5
vim	vscodevim	1.26.2	vscodevim.vim-1.26.2
vscode-docker	ms-azuretools	1.27.0	ms-azuretools.vscode-docker-1.27.0
vscode-dotnet-runtime	ms-dotnettools	1.8.1	ms-dotnettools.vscode-dotnet-runtime-1.8.1
vscode-edge-devtools	ms-edgedevtools	2.1.3	ms-edgedevtools.vscode-edge-devtools-2.1.3
vscode-eslint	dbaeumer	2.4.2	dbaeumer.vscode-eslint-2.4.2
vscode-gulp	tanato	0.0.4	tanato.vscode-gulp-0.0.4
vscode-intelephense-client	bmewburn	1.9.5	bmewburn.vscode-intelephense-client-1.9.5
vscode-mysql	formulahendry	0.5.0	formulahendry.vscode-mysql-0.5.0
vscode-nginx-conf	ahmadalli	0.3.2	ahmadalli.vscode-nginx-conf-0.3.2
vscode-pylance	ms-python	2023.10.40	ms-python.vscode-pylance-2023.10.40
vscode-react-native	msjsdiag	1.12.1	msjsdiag.vscode-react-native-1.12.1
vscode-sql-formatter	adpyke	1.4.4	adpyke.vscode-sql-formatter-1.4.4
vscode-tailwindcss	bradlc	0.10.1	bradlc.vscode-tailwindcss-0.10.1
vscode-todo-highlight	wayou	1.0.5	wayou.vscode-todo-highlight-1.0.5
vscode-xml	redhat	0.26.1	redhat.vscode-xml-0.26.1-linux-x64
vscode-yaml	redhat	1.14.0	redhat.vscode-yaml-1.14.0

Steps To Reproduce

No response

Expected Behavior

No response

Environment Information

No response

[tmeschter]

@thndgonz Just so I'm clear on how to reproduce this, your workspace contains multiple top-level folders rather than just one?

[gwtdgonz]

@thndgonz Just so I'm clear on how to reproduce this, your workspace contains multiple top-level folders rather than just one?

Yes, each project is at top level (example to clear any doubts):

• Workspace (root folder)
  • Project 1
    • .csproj file
  • Project 2
    • .csproj file
  • Project 3...etc
    • .csproj file

In terms of my file system:
/opt/projects (root folder)

• Project 1
• Project 2
• Project 3
• and so on

[rocifier]

Same problem here, multiple C# solutions as described above are not supported

[thndgonz]

Same problem here, multiple C# solutions as described above are not supported

Yesterday I had to set up vscode on a new computer and noticed that syntax highlighting and code completion were working as expected. This led me to believe that the reason it broke is perhaps a cache/old files (configs?) issues.

Granted there was also a new step. I let Dev Kit create/have its way generating the SLN file as well and placed it in the parent folder and just removed the things I didn't need.

So what I did yesterday on my laptop where the issue appeared was just wipe the Code folder in ~/.config/Code (in my case) and it started working again.

Summary, whatever is triggering this bug has to do with old cached files or old configuration files.

[github-actions]

This issue has been automatically closed due to inactivity from original bug filer and having the 'needs-more-info' label for more than 14 days. If the issue still persists, please reopen the issue with the requested information.

[ck-pando]

Has anyone found a solution to this? I am seeing this issue on the latest version of dev kit. My file structure is:

Workspace (root folder)
-- Project 1
---- .csproj file
-- Project 2
---- .csproj file

[peterneave]

I've had issues with multiple solutions in the same directory. The work around is to run .NET: Open Solution in the command palette and Devkit works as expected. It would be great if we could have some configuration that allows us to specify the main solution that we want Devkit to open.