JS API 3.14 token error
You may already be aware of this but thought I'd mention it in case you aren't. You can often get more info about what's going on using the browser's dev tools. In cases like this where an error is pointing to a line in init.js sometimes if you expand the error in the console you'll see additional details including perhaps a line of code in your app that is causing the problem. I put together a test app that tries to add an empty feature layer to the map. If I run the app the initial error is 'Cannot read property 'path' of null and it points to line 1690 of init.js. But if I go to the console and expand the error I can see that it refers to line 101 of my code (maximize_popup.html).
Another debugging tip for issues like these is to check the 'Pause on Exception' option available in dev tools then run your code. This will cause the app to pause when it hits an exception and you can look at the call stack which often also shows the line in your app that is causing the error. In Chrome the button you click on looks like a gray stop sign with a pause image. When activated it will turn blue and pause on the exception. Then if you look at the call stack you'll see it references line 101 of maximize_popup.html.
Hi Kelly - Thanks. Yes I love the Dev Tools, that's how I caught the error. The issue is that it only references init.js, not my code, but that's happened before with my own errors 
