Import {OPEN} from "./p5"; is giving an error

I’m trying to use the ARC() function with the ending optional OPEN constant. I’m getting the error:

“Uncaught SyntaxError: ambiguous indirect export: OPEN”

I’m using webStorm where I get this error inside their IDE. If I run my code in the p5 js editor I don’t see this error. So this must be an issue with webStorm?