Has the ViewingApplication constructor been removed from the AD Viewer API?

Question

After leaving my Autodesk extension alone for a few weeks, my initialization code is failing to create a ViewingApplication.

In my browser's js console, I can see that the Autodesk.Viewing object contains many objects, but it no longer contains any ViewingApplication. The Viewer API documentation still includes ViewingApplication.

Autodesk.Viewing.Initializer(options, function onInitialized(){
    viewerApp = new Autodesk.Viewing.ViewingApplication('MyViewerDiv');
    var config3d = {
      extensions: ['WharfExtension']
    };
    viewerApp.registerViewer(viewerApp.k3D, Autodesk.Viewing.Private.GuiViewer3D, config3d);
    var model = 'urn:' + defaultModel;
    viewerApp.loadDocument(model, onDocumentLoadSuccess, onDocumentLoadFailure);
});

My browser says, "Uncaught TypeError: Autodesk.Viewing.ViewingApplication is not a constructor," and I am inclined to agree?

EDIT: It works as expected from my coworker's machine, so apparently it is not a problem with the API. I am serving the page from a web server on my machine.

EDIT2: Solved. Thanks, Petr. I was including the new, non-backwards-compatible version of the API without realizing it. Autodesk describes how to create this behavior in the new version in their Migration Guide v6 to v7.

Answer 1

The viewer team has recently released new major version which is not backwards compatible.

Make sure that you're importing the viewer3d.js/viewer3d.min.js file with the expected major version. For example, if you've built your application against version 6 APIs, you should be using the following script tag:

<script src="https://developer.api.autodesk.com/modelderivative/v2/viewers/6.*/viewer3D.min.js"></script>