Versions of core.async older than 0.3.442 are broken with Clojure 1.9-alpha15 and newer. Morse itself seems to work fine, this is just to make the dependencies work out of the box.
Meanwhile, if somebody is getting a spec exception about :refer-clojure when loading Morse, try adding [org.clojure/core.async "0.3.465"] as a dependency to your project.
Versions of core.async older than 0.3.442 are broken with Clojure 1.9-alpha15 and newer. Morse itself seems to work fine, this is just to make the dependencies work out of the box.
Meanwhile, if somebody is getting a spec exception about
:refer-clojure
when loading Morse, try adding[org.clojure/core.async "0.3.465"]
as a dependency to your project.