Debugging view rerendering

I’ve picked up a non ember cli project and I’m working on porting it over. So I get all sorts of weird errors. This is the biggest one breaking things:

Uncaught Error: Something you did caused a view to re-render after it rendered but before it was inserted into the DOM

The whole stack trace just points to a bunch of ember debug locations.

Whats a typical place that this error can creep up? I dont even know where to look.