Oh, so the reason for the issue back then was because they were not on the same line. I was very puzzled, so I visited my calculator code and then it just kinda clicked to try, and I did then the errors stopped. I am now finished with the popup.js file. Took me a while but I guess it’s kinda changing the extension a bit more. It can now perform the basic calculation aspect, still isn’t loading the dashboard values though, but I’mma handle that in the last two files: content.js and content.css. There is no particular order (I think) I am merely following the easy building block guide