VSCode not running task on folder open

Question

I'm using TypeScript and constantly having to start the tsc-watch task manually. According to to the Blog VSCode v1.30+ can automatically run tasks when a folder is opened but this is not working for me (v1.33.1) - I open my folder and no task is running.

{
    // See https://go.microsoft.com/fwlink/?LinkId=733558
    // for the documentation about the tasks.json format
    "version": "2.0.0",
    "tasks": [
        {
            "type": "typescript",
            "tsconfig": "tsconfig.json",
            "isBackground": true,
            "problemMatcher": [
                "$tsc"
            ]
        },
        {
            "type": "typescript",
            "label": "TypeScript Compiler Watcher Thingy...",
            "tsconfig": "tsconfig.json",
            "option": "watch",
            "problemMatcher": [
                "$tsc-watch"
            ],
            "runOptions": {
                "runOn": "folderOpen"
            }
        }
    ]
}

BTW: Also tried this extension and it also did not start the task.

Outburst

It would have prompted you for permissions to autorun the task the first time you opened it with that task config. It's possible you clicked "no" by mistake. Try running the command "Allow automatic tasks in folder" – Albumenize

I have the same problem with "tsc watch" 2019.11 – Expressman

Does anyone found working solution ??? – Cameroun

Ctrl+SHIFT+P and Tasks: Manage Automatic Tasks in Folder and choose Allow Automatic Tasks in folder and restart VS Code – Melanous

Answer 1

This work in VSCode v. 1.42.1 my tasks.json

    {
     "version": "2.0.0",
     "tasks": [
        {
            "type": "typescript",
            "tsconfig": "tsconfig.json",
            "label": "TypeScript Compiler Watching...",
            "option": "watch",
            "presentation": {
                "echo": true,
                "reveal": "silent",
                "focus": false,
                "panel": "shared"
            },
            "isBackground": true,
            "runOptions": {"runOn": "folderOpen"},
            "problemMatcher": [
                "$tsc-watch"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            }
        }
    ]
   }

If this still not work on project folder open try Ctrl+shift+P and Tasks: Manage Automatic Tasks in Folder and choose "Allow Automatic Tasks in folder" on main project folder or running folder.

Cameroun