M121 - Ch1 - Optional Lecture - uncaught exception Syntax Error

Good Morning All

I’ve looked closely at this aggregation but can’t find my syntaxError. Could you assist?

Thank you

From your other thread, I’m guessing you’ve figured this one out already?

I haven’t figured this out, no. I’d like to see the result, but I must have a missing " { " or too many " : "… idk

The first thing that catches my eye is this:
Suggest you break your entire solution down. Run each stage one by one until you find which stages are failing.