Font not displaying on canvas

Question

I am using impactjs engine in javascript to draw font ,i have an image of fonts,nd trying to draw it on my canvas,but the font are aint displaying on canvas,where am i going wrong?any help thanx

.defines(function(){

EntityTutorial = ig.Entity.extend({
yellowFont : new ig.Font('/tutorial/yellow.png'),

 draw: function(){
    this.parent();
    console.log("draw");
    this.yellowFont.draw('Swipe from the hero to the Blue Team Soldier to release a Lightning Dragon',ig.game.screen.x+100,100,ig.Font.ALIGN.RIGHT);
    //this.blueFont.draw('dfdfd',ig.game.screen.x+100,100,ig.Font.ALIGN.RIGHT);
}
});