I get the above error a lot, though not always with the same phrases within the apostrophes. And, rather than asking what is wrong with my code every single time, I figured it would be more useful if I just asked here how I could troubleshoot this error.
I've looked around on docs.godotengine.org a bunch for this exact error, but I haven't found anything useful so far. But, since I'm so new to programming it's entirely likely I'm just using the wrong keywords since I can't make sense of a lot of it just yet.
Any help would be majorly appreciated!