"Uncaught error" in Step 4 - node does not have access to a size component

I am unable to render the arrow components as written in Step 4 (I copied and pasted the code from the lesson exactly to make sure it wasn't a typing error on my part). Nothing renders in the browser, and the console shows the following error and stack trace:

Node.js:537 Uncaught Error: This node does not have access to a size component
getSizeMode @ Node.js:537
DOMElement @ DOMElement.js:79
Arrow @ Arrow.js:7
Carousel @ Carousel.js:16
56../carousel/Carousel @ index.js:10
s @ _prelude.js:1
e @ _prelude.js:1
(anonymous function) @ _prelude.js:1

I did move on to steps 5 and 6 and noticed that the Pager and Dots components will render, if I comment out all references to Arrows.

Being new to this community in general I apologize for not having any idea on how to resolve this, but please let me know if there's any other info I can provide to assist in troubleshooting etc. Any assistance in completing the Arrow phase of this tutorial would be very much welcomed and appreciated! :)