A trouble with VS Code

[snippsat]

When I go to Terminal>Run task it opens the box "select the task to run". What should I do then?

I never use this,you should install Code Runner,i have more about this in my tutorial.

When installed open setting,search code-runner.executorMap.

"code-runner.executorMap": {
        "javascript": "node",
        "java": "cd $dir && javac $fileName && java $fileNameWithoutExt",
        "c": "gcc -o $fileNameWithoutExt $fullFileName && $fileNameWithoutExt",
        "cpp": "g++ -o $fileNameWithoutExt $fullFileName && $fileNameWithoutExt",
        "objective-c": "cd $dir && gcc -framework Cocoa $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
        "php": "php",
        "python": "$pythonPath $fullFileName",
        "perl": "perl",
        "ruby": "ruby",
        "go": "go run",
        "lua": "lua",

Set "python": "$pythonPath $fullFileName",
With this command will also switch automatically if change Python interpreter(down in left corner).

Now get a button to run code or right click run code.