TypeScript in VS Code: [ts] Cannot file the name console

Question

I just installed fresh Visual Studio Code 1.23.1 on my MAC and opened a directory with one simple file main.ts (no tsconfig.json there):

function getFinalPrice(price: number, discount: number) {
  return price - price/discount;
}

console.log(getFinalPrice(100, 10));

The word console is underlined with a squiggly red line, and the error reads:

[ts] Cannot file the name console".

I checked the installation directory of VS Code - it has the file .../extensions/node_modules/typescript/lib/lib.es2016.full.d.ts, which has this line:

declare var console: Console;

Why my VS Code doesn't pick it up?

My colleague tried the same code and he doesn't see this error. The only difference is that I have a freshly installed VS Code. What can be the problem?

Update: after adding a simple tsconfig.json file, the error is gone.

{
    "compilerOptions": { 
        "noEmitOnError": true, 
        "target": "es5"
    }
  }

Is this a must to have tsconfig.json in VS Code projects?

Yakov Fain · Accepted Answer · 2018-05-24 13:08:54Z

1

Actually, the reason for this error is described in the VS Code docs at https://code.visualstudio.com/docs/languages/typescript#_typescript-files-and-projects

Without the tsconfig.json CS Code works in a File Scope mode and you can only use the code defined within the file, which was not the case with the console.

answered May 24, 2018 at 13:08

Yakov Fain

12.4k5 gold badges35 silver badges40 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

James Monger · Accepted Answer · 2018-05-24 13:02:38Z

0

You need a tsconfig.json file as this will specify the lib definitions to include - one of which will contain a definition for console.

answered May 24, 2018 at 13:02

James Monger

10.8k9 gold badges65 silver badges99 bronze badges

Collectives™ on Stack Overflow

TypeScript in VS Code: [ts] Cannot file the name console

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related