I am using Clojure 1.7.0 and ClojureScript 1.7.170. For format dates, I use cljs-time 0.3.14.
The following is an example when figwheel crashes on my machine when it is running in another:
=> (require 'cljs-time.core 'cljs-time.format) => (cljs-time.format/unparse (cljs-time.format/formatter "yyyy") (cljs-time.core/date-time 2010 10 3)) #object[TypeError TypeError: Cannot read property 'call' of null] clojure.string.replace_with.G__31150__delegate (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/clojure/string.cljs:37:10) clojure.string.replace_with.G__31150 (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/clojure/string.cljs:33:10) clojure.string/replace-all (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/clojure/string.cljs:29:13) Function.clojure$string$replace (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/clojure/string.cljs:53:8) Function.cljs.core.apply.cljs$core$IFn$_invoke$arity$2 (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/cljs/core.cljs:3448:18) cljs.core/apply (jar:file:/Users/juanjo/.m2/repository/org/clojure/clojurescript/1.7.170/clojurescript-1.7.170.jar!/cljs/core.cljs:3439:1) cljs_time$format$unparse (jar:file:/Users/juanjo/.m2/repository/com/andrewmcveigh/cljs-time/0.3.14/cljs-time-0.3.14.jar!/cljs_time/format.cljs:439:4)
On a working computer, this is the result:
=> (cljs-time.format/unparse (cljs-time.format/formatter "yyyy") (cljs-time.core/date-time 2010 10 3)) "2010"
This is the error I get in chrome:

Update
These are my dependencies:
:dependencies [[org.clojure/clojure "1.7.0"] [selmer "0.9.5"] [markdown-clj "0.9.82"] [environ "1.0.1"] [ring-middleware-format "0.7.0"] [metosin/ring-http-response "0.6.5"] [bouncer "0.3.3"] [org.clojure/tools.nrepl "0.2.12"] [org.webjars/bootstrap "3.3.6"] [org.webjars/jquery "2.1.4"] [com.taoensso/timbre "4.1.5-SNAPSHOT"] [com.taoensso/tower "3.0.2"] [compojure "1.4.0"] [ring-webjars "0.1.1"] [ring/ring-defaults "0.1.5"] [ring "1.4.0" :exclusions [ring/ring-jetty-adapter]] [mount "0.1.6"] [migratus "0.8.8"] [conman "0.2.7"] [org.postgresql/postgresql "9.4-1203-jdbc41"] [org.clojure/clojurescript "1.7.170"] [reagent "0.5.1"] [reagent-forms "0.5.13"] [reagent-utils "0.1.5"] [com.domkm/silk "0.1.1"] [kibu/pushy "0.3.6"] [org.clojure/core.async "0.2.374"] [cljs-ajax "0.5.2"] [metosin/compojure-api "0.23.1"] [metosin/ring-swagger-ui "2.1.3"] [org.immutant/web "2.1.1"] [com.carouselapps/free-form "0.2.0"] [re-frame "0.6.0"] [com.andrewmcveigh/cljs-time "0.3.14"]]
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