cljs error

device.cljs

  (start
    [{:keys [control log writings spec] :as this}]
    (go (>! log :started) ;; this is line 58
        (loop [[conn stop-conn] (connect this)
               [disconnect disconnected] nil]
          (match (async/alts! (filter some? [control conn disconnected writings]))
            [:stop control] (do (>! log :stopped)
                                (when disconnect (disconnect))
                                (when stop-conn (stop-conn)))
            [nil conn] (recur (connect this) nil)
            [_ disconnected] (recur (connect this) nil)
            [thing conn] (recur nil (setup this thing))
            [v writings] (do (. writeStringCharacteristic
                                (:service-uuid spec) (:write-char spec) v)
                             (recur [conn stop-conn] [disconnect disconnected])))))
    this)

error.txt

Caused by: clojure.lang.ExceptionInfo: Don't know how to create ISeq from: clojure.lang.K
eyword at line 58 src/nl/sanderdijkhuis/device.cljs {:file "src/nl/sanderdijkhuis/device.
cljs", :line 58, :column 5, :tag :cljs/analysis-error}