Print Task/Widget Error: hasVisualVariables not function

[NickStapler]

When trying to print out a map that contains a simple heatmap rendered feature layer using a print task i get the following error:

(look at the attachment -- the insert image button was giving me trouble)

I also attached the file that produces the problem.

Any help/direction is appreciated!

[Noah-Sager]

Difficult to say, there's a lot of code there. I would say try to isolate the instances of `renderer` and see if there are some issues there. Or simplify the app to try to reduce the complexity.