target needs to be in deps.edn :paths key

[MageMasher]

The sample project only worked once I added "target" to my deps.edn file

{:paths ["src" "resources" "target"]
 :deps {org.clojure/clojurescript {:mvn/version "1.10.439"}
        com.bhauman/figwheel-main {:mvn/version "0.2.1-SNAPSHOT"}}}

Otherwise I was getting this error in my call to figwheel main

➜ clj -m figwheel.main -b ios -r
2019-01-04 09:08:23.188:INFO::main: Logging initialized @5067ms to org.eclipse.jetty.util.log.StdErrLog
[Figwheel:WARNING] Attempting to dynamically add "target" to classpath!
[Figwheel:WARNING] Target directory "target" is not on the classpath
[Figwheel:WARNING] Please fix this by adding "target" to your classpath
 I.E.
 For Clojure CLI Tools in your deps.edn file:
    ensure "target" is in your :paths key

 For Leiningen in your project.clj:
   add it to the :resource-paths key

[Figwheel] Compiling build ios to "target/public/cljs-out/ios-main.js"
[Figwheel] Successfully compiled build ios to "target/public/cljs-out/ios-main.js" in 7.756 seconds.
[Figwheel] Watching paths: ("src") to compile build - ios
[Figwheel] Starting Server at http://localhost:9500
[Figwheel] Starting REPL
Prompt will show when REPL connects to evaluation environment (i.e. a REPL hosting webpage)
Figwheel Main Controls:
          (figwheel.main/stop-builds id ...)  ;; stops Figwheel autobuilder for ids
          (figwheel.main/start-builds id ...) ;; starts autobuilder focused on ids
          (figwheel.main/reset)               ;; stops, cleans, reloads config, and starts autobuilder
          (figwheel.main/build-once id ...)   ;; builds source one time
          (figwheel.main/clean id ...)        ;; deletes compiled cljs target files
          (figwheel.main/status)              ;; displays current state of system
Figwheel REPL Controls:
          (figwheel.repl/conns)               ;; displays the current connections
          (figwheel.repl/focus session-name)  ;; choose which session name to focus on
In the cljs.user ns, controls can be called without ns ie. (conns) instead of (figwheel.repl/conns)
    Docs: (doc function-name-here)
    Exit: :cljs/quit
 Results: Stored in vars *1, *2, *3, *e holds last exception object
JavaScript environment will not launch automatically when :open-url is false

And this error from ios simulator

[codonovan]

I had this problem this yesterday. Updating to org.clojure/clojurescript {:mvn/version "1.10.439"} fixed it for me. I still get the warnings but my bundle builds. Have you used an older version of the library, might need to clean out /target?