userbehaviours.clj

[
 ;; The app tag is kind of like global scope. You assign behaviors that affect
 ;; all of Light Table to it.
 [:app :lt.objs.style/set-skin "dark"]
 [:app :lt.objs.plugins/load-js "user_compiled.js"]
 [:app :lt.objs.langs.julia/julia-path "C:\\Users\\Mike\\Julia 0.3.0-prerelease\\bin\\julia.exe"]

 ;; The editor tag is applied to all editors
 [:editor :lt.objs.editor/no-wrap]
 [:editor :lt.objs.style/set-theme "june"]
 [:editor.julia :lt.objs.editor/tab-settings false 4 4]

 ;; Here we can add behaviors to just clojure editors
 [:editor.clojure :lt.plugins.clojure/print-length 1000]

 ;; Behaviors specific to a user-defined object
 [:user.hello :lt.plugins.user/on-close-destroy]

 ;; To subtract a behavior, prefix the name with '-' e.g.
 ;;  [:app :-lt.objs.intro/show-intro]
]

I experienced the same error however I did not have the jewel.jl package loaded into julia. Go to troubleshooting subheading in the Installing & Upgrading section on the Juno page. From the julia executable I added the jewel package with the command Pkg.add("Jewel"). The box in the lower right still lights with the red counter but it does say that it is connected to juia