Error on lein run: "class clojure.lang.Symbol cannot be cast to class clojure.lang.IPersistentCollection"

[DieterKoblenz]

When I try to run this on Windows 11 with JDK 15 I get the following error:

:cause "class clojure.lang.Symbol cannot be cast to class clojure.lang.IPersistentCollection (clojure.lang.Symbol and clojure.lang.IPersistentCollection are in unnamed module of loader 'app')", :phase :compile-syntax-check}}

Unfortunately I haven't worked with clojure before, and was wondering if there is an easy fix for it.

[carlosefr]

I've never tried running it on Windows but, from the error and assuming you have the version of clojure specified in project.clj, I wonder if that's coming from a dependency.