Using easeljs with typescript: error TS2304: Cannot find name 'EventDispatcher'

Question

I'm trying to use easeljs with typescript

I've setup typescript, and installed typings by:

$ typings install easeljs --ambient

I have a file named canvas.ts:

/// <reference path="browser/main.d.ts" />

var canv = < HTMLCanvasElement > document.createElement("canvas");
canv.width = 800;
canv.height = 600;
canv.style.border = "5px solid silver";

var stage = new createjs.Stage(canv);

var circle = new createjs.Shape();
circle.graphics.beginFill("DeepSkyBlue").drawCircle(0, 0, 50);
circle.x = 100;
circle.y = 100;
stage.addChild(circle);

stage.update();

document.body.appendChild(canv);

Calling tsc canvas.ts I get:

typings/main/ambient/easeljs/easeljs.d.ts(187,40): error TS2304: Cannot find name 'EventDispatcher'.
typings/main/ambient/easeljs/easeljs.d.ts(657,19): error TS2304: Cannot find name 'Timeline'.
typings/main/ambient/easeljs/easeljs.d.ts(679,22): error TS2304: Cannot find name 'Tween'.
typings/main/ambient/easeljs/easeljs.d.ts(797,38): error TS2304: Cannot find name 'EventDispatcher'.
typings/main/ambient/easeljs/easeljs.d.ts(818,45): error TS2304: Cannot find name 'EventDispatcher'.

If I do typings install tweenjs --ambient only the messages about EventDispatcher remain. Installing createjs using typings won't help.

After calling tsc the .js file seems to be generated correctly (I can see the circle), but the error seems to indicate that I'm doing something wrong. Any ideas what it is?

Disclaimer: never used javascript/typescript before so it's probably something trivial.

Answer 1

Typings doesn't install dependencies for ambient stuff by default as they can cause module dependency problems (e.g. the diamond problem).

However it does tell you which ones you might need:

You figured out tweenj.d.ts. You also need createjs-lib as pointed out 🌹