Omnisharp doesn't work, VSCode output doesn't even include Omnisharp in the dropdown list

[shalevy2888]

Environment data

dotnet --info output: Product Information: Version: 2.0.2 Commit SHA-1 hash: a04b4bf512

Runtime Environment: OS Name: Mac OS X OS Version: 10.13 OS Platform: Darwin RID: osx.10.12-x64 VS Code version: 1.18 C# Extension version: 1.13.1

Steps to reproduce

After automatically getting the latest VSCode (1.18 with blue icon now) and re-installing the C# extension, Omnisharp doesn't work.

Tried:

1. opening many different projects
2. Removing and installing the extension
3. removing and installing VSCODE
4. Installing Mono and dotnet again and again :)
5. Installing Omnisharp with Brew

What I really would like is to have some hints on how to debug why it doesn't work on my system. I assume this is a user issue, but I already spend 3 hours trying to debug without any success. I tried also to enable: "omnisharp.loggingLevel": "debug" - but since the output doesn't include Omnisharp it doesn't really help...

Any help?

Thanks!

Expected behavior

Actual behavior

[Sebioff]

Same for me. It was working on 1.17 a couple hours ago then VSCode automatically updated to 1.18 and restarted and now Omnisharp doesn't work anymore. Nothing else changed. For me it's printing this to the console:

Failed to spawn 'dotnet --info'

Tried the same steps to fixing it as @shalevy2888

[DustinCampbell]

Could you check your ~/.vscode/extensions folder (%UserProfile%\.vscode\extensions on Windows) and ensure there's just a single ms-vscode.csharp-* extension installed?

[shalevy2888]

Only one extension installed, here is the ls: lshay-mac03:~ lshay$ cd ~/.vscode/extensions lshay-mac03:extensions lshay$ ls -laF total 32 drwxr-xr-x 20 lshay staff 640 Nov 14 12:31 ./ drwxr-xr-x 4 lshay staff 128 Nov 14 11:22 ../ -rw-r--r--@ 1 lshay staff 12292 Nov 14 12:31 .DS_Store drwxr-xr-x 18 lshay staff 576 Nov 13 11:39 PKief.material-icon-theme-3.0.0/ drwxr-xr-x 14 lshay staff 448 Nov 5 14:27 Shan.code-settings-sync-2.8.5/ drwxr-xr-x 11 lshay staff 352 Sep 19 22:23 Tobiah.unity-tools-0.1.9/ drwxr-xr-x 9 lshay staff 288 Sep 26 11:21 Unity.unity-debug-1.2.1/ drwxr-xr-x 9 lshay staff 288 Sep 19 22:23 casualjim.theme-desertex-0.0.6/ drwxr-xr-x 13 lshay staff 416 Oct 2 13:48 eppz.eppz-code-1.2.41/ drwxr-xr-x 8 lshay staff 256 Sep 19 22:23 lionize.unity-snippets-modified-0.3.2/ drwxr-xr-x 20 lshay staff 640 Oct 3 13:20 magicstack.magicpython-1.0.12/ drwxr-xr-x 27 lshay staff 864 Nov 13 11:39 ms-python.python-0.8.0/ drwxr-xr-x 20 lshay staff 640 Nov 14 12:32 ms-vscode.csharp-1.13.1/ drwxr-xr-x 13 lshay staff 416 Nov 13 11:39 ms-vscode.mono-debug-0.15.8/ drwxr-xr-x 21 lshay staff 672 Oct 30 19:37 robertohuertasm.vscode-icons-7.17.0/ drwxr-xr-x 16 lshay staff 512 Oct 30 19:37 streetsidesoftware.code-spell-checker-1.4.12/ drwxr-xr-x 19 lshay staff 608 Oct 3 13:20 tht13.python-0.2.3/ drwxr-xr-x 9 lshay staff 288 Sep 19 22:23 wayou.vscode-todo-highlight-0.5.11/ drwxr-xr-x 12 lshay staff 384 Oct 2 13:48 yannpapouin.theme-monolivia-1.0.3/ drwxr-xr-x 8 lshay staff 256 Oct 6 21:51 zrachod.mono-snippets-0.0.2/

[ysris]

Same here.

dotnet --info
Outils en ligne de commande .NET (2.0.0)

Product Information:
 Version:            2.0.0
 Commit SHA-1 hash:  cdcd1928c9

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64
 Base Path:   /usr/local/share/dotnet/sdk/2.0.0/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

After updating to 2.0.2 using this https://download.microsoft.com/download/7/3/A/73A3E4DC-F019-47D1-9951-0453676E059B/dotnet-sdk-2.0.2-osx-gs-x64.pkg

omnisharp works again.

[Sebioff]

Only got one extension installed. After installing .Net SDK 2.0.2 as @ysris suggested I don't get the "failed to spawn dotnet" error anymore but Omnisharp is still not working

[ysris]

@Sebioff don't know if it can help you but now dotnet --info says

Outils en ligne de commande .NET (2.0.2)

Product Information:
 Version:            2.0.2
 Commit SHA-1 hash:  a04b4bf512

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64
 Base Path:   /usr/local/share/dotnet/sdk/2.0.2/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

Is there anything interesting in the omnisharp log (vscode output, dropdown > omnisharplog) ?

[shalevy2888]

I have .NET 2.0.2 installed. Omnisharp is not working and there is no dropdown->omnisharp in VSCODE output. Which make me think Omnisharp failed very early to start... but I don't know how to debug this.

[DustinCampbell]

FWIW, I have .NET Core SDK 2.0.2 installed as well.

Yes, it seems like the VS Code extension failed to activate. Could you try invoking the OmniSharp: Restart OmniSharp command in VS Code? Also, it might be worth toggling the Developer Tools in VS Code and see if anything useful appears in the console when launching.

[Sebioff]

The Restart Omnisharp command does nothing at all from what I can tell. Both the developer tools console and VSCode output are empty.

[shalevy2888]

Restarting OmniSharp doesn't do anything. Also "OmniSharp: Select Project" shows 0 projects. How do I toggle the Developer Tools in VS Code? Thanks.

[DustinCampbell]

Help->Toggle Developer Tools

[shalevy2888]

I'm getting this Error on the Developer Tools Console: Unable to write to User Settings because sync.version is not a registered configuration.: Error: Unable to write to User Settings because sync.version is not a registered configuration.

Not sure if it's related.

[dz4va]

Restart Omnisharp doesn't work for me too on 1.18, output and developer tools console are empty.

[dy-sh]

Same thing. Stop working on 1.18 Updating .NET Core SDK to 2.0.2 fixed the problem (it was 1.0.0).

[DustinCampbell]

Note that the version of VS Code (1.18) is orthogonal to the version of C# for VS Code that you have installed (the latest is 1.13.1)

[Sebioff]

Yes, C# for VS Code version 1.13.1 is installed. Any further logs to check or things to try? I'll gladly provide and test anything that might help resolve this.

[Blist]

Same problem. Stop working on 1.18 and no omnisharp log ouput

dotnet --info
.NET Command Line Tools (2.0.2)

Product Information:
 Version:            2.0.2
 Commit SHA-1 hash:  a04b4bf512

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  10.12
 OS Platform: Darwin
 RID:         osx.10.12-x64
 Base Path:   /usr/local/share/dotnet/sdk/2.0.2/

Microsoft .NET Core Shared Framework Host

  Version  : 2.0.0
  Build    : e8b8861ac7faf042c87a5c2f9f2d04c98b69f28d

I try it with the insider preview of vscode (1.19) and all working fine. Perhaps a problem with vscode 1.18?

[shalevy2888]

Does Omnisharp has any logs it produces that I can look at? If yes, where are they located in Mac?

[SIkebe]

@shalevy2888

1. In VS Code, select View->Output to bring up the Output pane.
2. In the Output pane, select "OmniSharp Log" from the combobox in the top-right corner.

[shalevy2888]

Sorry for the confusion. Right now Omnisharp doesn't even start (I suspect) so there is no log inside of VSCode. Omnisharp isn't part of the dropbox. From the thread I understand others are experiencing the same.

My question was of other logs, in some local folder on my drive that I can look at...

[DustinCampbell]

I would be interested to know if there is even a .debugger or .omnisharp folder in the ~./vscode/extensions/ms-vscode-csharp.<version> directory on your machine. If there isn't, the extension hasn't even activated and downloaded the debugger or OmniSharp.

[Sebioff]

Yes, both folders exist and contain a whole bunch of dlls and the Omnisharp/debugger exes

[shalevy2888]

Yes, they exist. If I remove the extension and reload vscode and than install and reload, both OmniSharp and .Net are downloaded and installed. But other than that I don't see any logs...

[DustinCampbell]

@shalevy2888 : You're on OSX, right? Could you try running the following command in a Terminal window?

> ~/.vscode/extensions/ms-vscode.csharp-<version>/.omnisharp/run --stdio -s <path-to-your-project-folder>

Let me know the output.

[shalevy2888]

Here is what I get when running the above command (sorry for the long log). I do see this message inside: Omnisharp server running using Stdio at location.

~/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/run --stdio -s ~/Dropbox/Develpment/Unity/ColorNLight/
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Stdio.Host","Message":"Starting OmniSharp on MacOS 10.13.1 (x64)"},"Seq":1,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.Discovery.MSBuildLocator","Message":"Located 1 MSBuild instance(s)\n            1: StandAlone 15.0 - \"/Users/lshay/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/omnisharp/msbuild/15.0/Bin\""},"Seq":2,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.Discovery.MSBuildLocator","Message":"MSBUILD_EXE_PATH environment variable set to '/Users/lshay/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/omnisharp/msbuild/15.0/Bin/MSBuild.dll'"},"Seq":3,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.Discovery.MSBuildLocator","Message":"Registered MSBuild instance: StandAlone 15.0 - \"/Users/lshay/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/omnisharp/msbuild/15.0/Bin\"\n            MSBuildExtensionsPath = /Library/Frameworks/Mono.framework/Versions/5.4.1/lib/mono/xbuild\n            CscToolPath = /Users/lshay/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/omnisharp/msbuild/15.0/Bin/Roslyn\n            CscToolExe = csc.exe\n            MSBuildToolsPath = /Users/lshay/.vscode/extensions/ms-vscode.csharp-1.13.1/.omnisharp/omnisharp/msbuild/15.0/Bin\n            TargetFrameworkRootPath = /Library/Frameworks/Mono.framework/Versions/5.4.1/lib/mono/xbuild-frameworks"},"Seq":4,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Cake.CakeProjectSystem","Message":"Detecting Cake files in '/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/'."},"Seq":5,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Cake.CakeProjectSystem","Message":"Could not find any Cake files"},"Seq":6,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.DotNet.DotNetProjectSystem","Message":"Initializing in /Users/lshay/Dropbox/Develpment/Unity/ColorNLight/"},"Seq":7,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.DotNet.DotNetProjectSystem","Message":"Auto package restore: False"},"Seq":8,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.DotNet.DotNetProjectSystem","Message":"Update workspace context"},"Seq":9,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.DotNet.DotNetProjectSystem","Message":"Resolving projects references"},"Seq":10,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Detecting projects in '/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/ColorNLight.sln'."},"Seq":11,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Loading project: /Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp.csproj"},"Seq":12,"Type":"event"}
{"Event":"MsBuildProjectDiagnostics","Body":{"FileName":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp.csproj","Warnings":[],"Errors":[]},"Seq":13,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Loading project: /Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp-Editor.csproj"},"Seq":14,"Type":"event"}
{"Event":"MsBuildProjectDiagnostics","Body":{"FileName":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp-Editor.csproj","Warnings":[],"Errors":[]},"Seq":15,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Update project: Assembly-CSharp"},"Seq":16,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Update project: Assembly-CSharp-Editor"},"Seq":17,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"WARNING","Name":"OmniSharp.MSBuild.MSBuildProjectSystem","Message":"Unable to resolve assembly '/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Temp/bin/Debug/Assembly-CSharp.dll'"},"Seq":18,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Script.ScriptProjectSystem","Message":"Detecting CSX files in '/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/'."},"Seq":19,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Script.ScriptProjectSystem","Message":"Could not find any CSX files"},"Seq":20,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Stdio.Host","Message":"Invoking Workspace Options Provider: OmniSharp.Roslyn.CSharp.Services.CSharpWorkspaceOptionsProvider"},"Seq":21,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Stdio.Host","Message":"Configuration finished."},"Seq":22,"Type":"event"}
{"Event":"log","Body":{"LogLevel":"INFORMATION","Name":"OmniSharp.Stdio.Host","Message":"Omnisharp server running using Stdio at location '/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/' on host -1."},"Seq":23,"Type":"event"}
{"Event":"started","Body":null,"Seq":24,"Type":"event"}
{"Event":"ProjectAdded","Body":{"MsBuildProject":{"ProjectGuid":"73600f25-338e-5abc-f8d5-ddd73694da22","Path":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp.csproj","AssemblyName":"Assembly-CSharp","TargetPath":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Temp/bin/Debug/Assembly-CSharp.dll","TargetFramework":".NETFramework,Version=v2.0","SourceFiles":["/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/cui_color_picker-master/Assets/CUIColorPicker.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/AutoHide.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/ImageSlider.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/ScreenColor.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/SwatchColor.cs"],"TargetFrameworks":[],"OutputPath":"Temp\\bin\\Debug\\","IsExe":false,"IsUnityProject":true}},"Seq":25,"Type":"event"}
{"Event":"ProjectAdded","Body":{"MsBuildProject":{"ProjectGuid":"2e04984d-a81f-05db-8fb0-29b7c01cb034","Path":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp-Editor.csproj","AssemblyName":"Assembly-CSharp-Editor","TargetPath":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Temp/bin/Debug/Assembly-CSharp-Editor.dll","TargetFramework":".NETFramework,Version=v2.0","SourceFiles":["/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/VSCode/Plugins/Editor/VSCode.cs"],"TargetFrameworks":[],"OutputPath":"Temp\\bin\\Debug\\","IsExe":false,"IsUnityProject":true}},"Seq":26,"Type":"event"}
{"Event":"ProjectChanged","Body":{"MsBuildProject":{"ProjectGuid":"73600f25-338e-5abc-f8d5-ddd73694da22","Path":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp.csproj","AssemblyName":"Assembly-CSharp","TargetPath":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Temp/bin/Debug/Assembly-CSharp.dll","TargetFramework":".NETFramework,Version=v2.0","SourceFiles":["/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/cui_color_picker-master/Assets/CUIColorPicker.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/AutoHide.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/ImageSlider.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/ScreenColor.cs","/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/Scripts/SwatchColor.cs"],"TargetFrameworks":[],"OutputPath":"Temp\\bin\\Debug\\","IsExe":false,"IsUnityProject":true}},"Seq":27,"Type":"event"}
{"Event":"ProjectChanged","Body":{"MsBuildProject":{"ProjectGuid":"2e04984d-a81f-05db-8fb0-29b7c01cb034","Path":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assembly-CSharp-Editor.csproj","AssemblyName":"Assembly-CSharp-Editor","TargetPath":"/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Temp/bin/Debug/Assembly-CSharp-Editor.dll","TargetFramework":".NETFramework,Version=v2.0","SourceFiles":["/Users/lshay/Dropbox/Develpment/Unity/ColorNLight/Assets/VSCode/Plugins/Editor/VSCode.cs"],"TargetFrameworks":[],"OutputPath":"Temp\\bin\\Debug\\","IsExe":false,"IsUnityProject":true}},"Seq":28,"Type":"event"}

[DustinCampbell]

Great! It looks like the problem isn't with OmniSharp itself and it loads your Unity projects correctly. Instead, it seems that the C# extension isn't triggering on your machine for some reason. @jrieken, do you know of any issues in VS Code 1.18 above extension loading?

[jrieken]

@jrieken, do you know of any issues in VS Code 1.18 above extension loading?

What would be pretty bad news to me. Adding @sandy081 who owns the extension installing and loading.

[DustinCampbell]

Thanks @jrieken! @sandy081: Do you have any tricks for debugging an extension not loading?

[shalevy2888]

Got it to work!!!

1. I got a weird error while doing global find in VSCODE, something about error parsing glob. Found a solution online: https://github.com/Microsoft/vscode/issues/25923 which indicate I might be excluding more file types than I should.
2. I removed the *.sln exclude from my settings and it solved the global find problem. I then thought it might be related...
3. I uninstalled c# extension, reloaded VSCODE. Installed again, reloaded, let the extension download and install Omnisharp - and it works!

This exclude isn't new in my settings and it was working without a problem in the previous version of VSCODE. So I'm guessing they changed something and it caused the extension to fail as well.

I would have thought the exclude feature of VSCODE is cosmetic only, just what to show or not show in the file browser, but it has too much hidden functionality. I guess I'm going to remove all the excludes.

Thanks all for trying to help. I wonder if this fixes the issue for the other people in this thread.

Shay

[Sebioff]

Yes! Awesome :) Didn't even need to uninstall/reinstall Omnisharp, just had to find and remove the problematic exclude. In my case it was "**/**.prefab": true,