"TWEEN is undefined"

[aprilcarter]

When I try to reference the TWEEN class in my code, I get an "Uncaught ReferenceError" saying that TWEEN is undefined. I have used the TweenJS CDN, the CreateJS CDN, the minified and the unminified file locally, and searched through countless examples to try and find out where I am going wrong. The line I get the error on is:

var tween = new TWEEN.Tween(location);

When I use the CreateJS CDN, the browser has no trouble with "new createjs...", but I just cannot get TweenJS to work.

[gskinner]

Where are you finding a reference to an object named "TWEEN"? Is it in the docs or examples somewhere? Tween is inside the createjs object:

createjs.Tween.get(target).to({x:100}, 1000);

[aprilcarter]

I did notice in the docs that you always used createjs. I am going off of the blog post "Advanced animation path" and other blog posts like it. I did try createjs, though, and it got me past the object reference, but then I get "undefined is not a function" on every method after ".to()". I will remove one method, and the error simply moves to the next one down the list.

[lannymcnie]

It may have been an old blog post (more than 3 years). Have a look at the documentation and examples, and post questions to StackOverflow (this forum is for reporting issues).

Cheers!

[aprilcarter]

I have looked through examples and documentation from this forum. I still end up with the error "undefined is not a function" on the methods I use, no matter what I use.

[gskinner]

Try starting with these demos:
http://createjs.com/Demos/TweenJS/Tween_Circles

You can view and edit the code using the tab at the bottom right.

[aprilcarter]

Thanks! It turns out, I was getting this mixed up with another library called tweenjs that does use an object called TWEEN. I was using your CDN, (because I assumed your site belonged to the other tweenjs), and getting the methods all mixed up going back and forth between the two libraries' documentation. I was using their methods with your object. I can't believe I missed that they were two separate libraries for so long. The fact that the TWEEN object comes back as undefined even when I am referencing the right files means that I will probably try to work out how to do what I want with createjs before trying to figure out why TWEEN isn't working. It seems like this tween library is more complete as well. In the end, I'm glad I made the mistake.