Task.json "Matches multiple schemas when only one must validate."

[roa-nyx]

Issue Type: Bug

I am creating tasks.json entries similar to https://github.com/...

My final tasks.json is:

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "watch-app",
            "dependsOn": [
                "watch-app-cs",
                "watch-app-js"
            ],
            "problemMatcher": []
        },
        {
            "label": "watch-app-cs",
            "type": "shell",
            "options": {
                "cwd": "./App"
            },
            "command": "dotnet",
            "args": [
                "watch",
                "run"
            ],
            "presentation": {
                "group": "watch-app"
            }
        },
        {
            "label": "watch-app-js",
            "type": "shell",
            "options": {
                "cwd": "./App"
            },
            "command": "npm",
            "args": [
                "run",
                "watch"
            ],
            "presentation": {
                "group": "watch-app"
            }
        }
    ]
}

And it appears to work, however when I have the tasks.json file open the { above "label": "watch-app" has a green squiggly underline and hovering over it gives me "Matches multiple schemas when only one must validate."

Am I doing something wrong? Or should this actually be treated as valid?

VS Code version: Code 1.31.0 (7c66f58, 2019-02-05T22:35:56.624Z)
OS version: Windows_NT x64 10.0.17763

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-6600U CPU @ 2.60GHz (4 x 2808)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled surface_synchronization: enabled_on video_decode: enabled webgl: enabled webgl2: enabled
Memory (System)	7.89GB (1.49GB free)
Process Argv
Screen Reader	no
VM	0%

Extensions (4)

Extension	Author (truncated)	Version
calculate	aca	2.1.0
vscode-css-formatter	aes	1.0.1
csharp	ms-	1.17.1
unity-debug	Uni	2.6.6

[mizx]

Just updated to 1.31.0 and getting this too. Error occurs for the 3rd task for me:

{
    "label": "label-name",
    "dependsOn": "npm: start", "npm: "dev-server"],
}

If I add a "type" prop the error seems to go away. Is "type" is required now? If so what should it be set to for compound tasks? I tried both "shell" and "process" and neither worked.

I was referenced this doc when creating my tasks.json: https://code.visualstudio.com/docs/editor/tasks#_compound-tasks

[zinge]

First i add "presentation.group" in existing tasks.json, before work perfectly.
I tried and understood that I didn't need it, deleted these lines and the launch attempt led to a similar error.
I am nothing change in tasks.json and restart vscode. Fixed. Magic.

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "type": "shell",
    "group": "none",
    "tasks": [
        {
            "label": "App: Maven [Clean Install]",
            "linux": {
                "command": "mvn clean install ..."
            },
            "problemMatcher": []
        },
        {
            "label": "App: Npm [WebApp Install]",
            "linux": {
                "command": "npm install ..."
            },
            "problemMatcher": []
        },
        {
            "label": "App: Install",
            "dependsOn": [
                "App: Npm [WebApp Install]",
                "App: Maven [Clean Install]"
            ],
            "problemMatcher": []
        }
}

[alexr00]

Thank you for filing this!

[alexr00]

I tested out several configurations, but the task schema is complex and I may have missed something. Let me know if this solves your cases!

[roa-nyx]

Apologies @alexr00 I'm confused by your last comment. Has this fix been released so I can test it? Is this task currently in a state that you need feedback, or is it closed/will be fixed in next release? I haven't seen any update come through on VSCode (still on 1.31.0).

[alexr00]

The fix is in the VS Code Insiders build. You can try it out there now, or you can wait for the February release. If you do try out the Insiders build it would be great if you could confirm that the validation error is gone since it will give me a chance to make further fixes before the February release if needed 😊

[roa-nyx]

Ok, sweet. I'll maybe try that later today if I can get the insiders build to install SxS with the stable release.

[Admiralfeb]

I have the same problem with the Production version.
I've loaded up my project in VSCode Insiders and it appears to be working. I don't have the warning in my Tasks.json on the Insiders build.

Insiders version:
Version: 1.32.0-insider (user setup)
Commit: a509265
Date: 2019-02-13T06:17:10.681Z
Electron: 3.1.3
Chrome: 66.0.3359.181
Node.js: 10.2.0
V8: 6.6.346.32
OS: Windows_NT x64 10.0.16299