Omnisharp-vscode: command 'csharp.coreclrAdapterExecutableCommand' not found

[sgentile]

When trying to debug inside of Visual Code I get this error:

command 'csharp.coreclrAdapterExecutableCommand' not found

Runtime Environment:
OS Name: Windows
OS Version: 10.0.17134
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.1.302\

Host (useful for support):
Version: 2.1.2
Commit: 811c3ce6c0

.NET Core SDKs installed:
2.1.103 [C:\Program Files\dotnet\sdk]
2.1.201 [C:\Program Files\dotnet\sdk]
2.1.302 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

[gregg-miskelly]

So what this means is that VS Code is somehow failing to find the command from the C# extension.

If you open a .cs file first, do you still see it?
If you go to the command pallet, do you see other C# extension commands (ex: '.NET: Generate Assets for Build and Debug)

If you don't see any C# extension commands, you might try uninstalling and reinstalling the C# extension. We had one previous customer run into this problem, and that fixed it for them.

[Excited-ccccly]

I also have this problem on my Antergos. I have tried to reinstall C# extension, but it still won't download the ominisharp and nearly every command is not found.

Then I reopened vscode with --inspect-extensions flag, and in the developer tools, I found this error.

[Extension Host] Activating extension `ms-vscode.csharp` failed:  Cannot find module './symbol/rxSubscriber'
t.log @ /opt/visual-studio-code/resources/app/out/vs/workbench/workbench.main.js:270
/opt/visual-studio-code/resources/app/out/vs/workbench/workbench.main.js:270 [Extension Host] Here is the error stack:  Error: Cannot find module './symbol/rxSubscriber'
    at Function.Module._resolveFilename (module.js:470:15)
    at Function.Module._load (module.js:418:25)
    at Function.t._load (/opt/visual-studio-code/resources/app/out/vs/workbench/node/extensionHostProcess.js:814:682)
    at Function.o._load (/opt/visual-studio-code/resources/app/out/vs/workbench/node/extensionHostProcess.js:765:373)
    at Module.require (module.js:498:17)
    at Module.patchedRequire [as require] (/opt/visual-studio-code/resources/app/extensions/git/node_modules/diagnostic-channel/dist/src/patchRequire.js:14:46)

Btw, I am using Settings Sync extension. And all extensions and user settings are synced from another computer. I don't know whether it matters.

[MaxIakovliev]

Experiencing exactly same issue.
command 'csharp.coreclrAdapterExecutableCommand' not found

here is output of
dotnet --info :
.NET Core SDK (reflecting any global.json):
Version: 2.1.302
Commit: 9048955601

Runtime Environment:
OS Name: Windows
OS Version: 10.0.16299
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.1.302\

Host (useful for support):
Version: 2.1.2
Commit: 811c3ce6c0

.NET Core SDKs installed:
2.1.302 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download

I created .NetCore project using:
dotnet new console
dotnet new restore

By pressing Ctrl+Shift+B it prompts "No build task to run found. Configure Build Task"
-> "create task.json from template ->.Net Core (Execute .Net Core build command) -> it creates task.json:

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "label": "build",
            "command": "dotnet build",
            "type": "shell",
            "group": "build",
            "presentation": {
                "reveal": "silent"
            },
            "problemMatcher": "$msCompile"
        }
    ]
}

However -Debug option still does not work.
When I press F5 - no .Net Debugger available in the list 👎 .
I added launch.json file manually under the .vscode folder.

When I open launch.json file- it shows "Add Configuration" button that does nothing.
How can I fix it?

[gregg-miskelly]

@Excited-ccccly do you still install your extensions to the standard location (~/.vscode/extensions)?
Does ~/.vscode/extensions/ms-vscode.csharp-1.15.2/node_modules/rxjs/symbol/rxSubscriber.js exist on your computer?

[gregg-miskelly]

@MaxIakovliev if you uninstall and reinstall the C# extension, does the problem still happen for you?

[Excited-ccccly]

@gregg-miskelly No, it doesn't exsit.

➜  ~ ls ~/.vscode/extensions/ms-vscode.csharp-1.15.2/node_modules/rxjs/symbol
iterator.d.ts

Then I execute npm install in ~/.vscode/extensions/ms-vscode.csharp-1.15.2/node_modules/rxjs folder. After installation, rxSubscriber.js still doesn't exist.

I have also tried to init another npm project and install rxjs as a dependency. The rxSubscriber.js exsits in this newly created project.

[Excited-ccccly]

@gregg-miskelly I have delete ms-vscode.csharp-1.15.2 folder manually, and reinstall the c# extension. It works!

[floreseken]

Reinstalling the c# extension from the UI fixed it for me..

[nimrodolev]

I just got this error, pretty sure after VS Code updated itself.
After reading the comments here I tried to uninstall and then reinstall the C# extension (In my case it's version 1.16.1), but that didn't help. I then went on to check if I had the file ~/.vscode/extensions/ms-vscode.csharp-1.16.1/node_modules/rxjs/symbol/rxSubscriber.js, and notices that although the file exists, it is completely empty. Lastly, after trying reinstalling again, I noticed that my ~/.vscode/extensions/ms-vscode.csharp-1.16.1 directory wasn't actually being removed when I uninstalled the extension.

So finally, the solution that worked for me -

• Uninstall C# extnesion
• Manually delete extension directory from ~/.vscode/extensions/
• Reinstall the extension

Hope this might help someone

[hnviradiya]

@nimrodolev I think if this is not added as bug, then you should raise this.