Error when cljs repl is starting up

[cwhitey]

Hi,

I continually get the following error when the cljs repl is start up:

1. Unhandled java.lang.AssertionError
   Assert failed: Arguments must be interleaved key value pairs (even? (count
   opts))

                   browser.clj:  605  cljs.repl.browser/repl-env
                   RestFn.java:  421  clojure.lang.RestFn/invoke
                          REPL:    3  user/eval17155

The assertion seems to be originating from here

I'm using the base reagent-seed leiningen template, with piggieback support added to the project.clj.

Extra info: ; CIDER 0.9.0-snapshot (Java 1.7.0_55, Clojure 1.6.0, nREPL 0.2.10)

Any ideas?

Thanks,
Callum