1180: Call to a possibly undefined method assignListeners.
Writing a class and needed to assign a series of EventListeners to an object.
The error is telling you the the method your referencing may not exist.
Being a complete tool, I invoked the function without having actually created it in my class. Apparently I was using the Agile approach … I was able to solve the issue by actually writing the method assignListeners() in my class.
This error is commonly seen with Error 1046 when you forget to import a class package.