# How to start with clj + shadow-cljs + rum

**URL:** https://clojureverse.org/t/how-to-start-with-clj-shadow-cljs-rum/7403
**Category:** Beginners
**Created:** [March 28, 2021, 7:10pm UTC](https://clojureverse.org/t/how-to-start-with-clj-shadow-cljs-rum/7403 "2021-03-28T19:10:22Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![stephen](https://clojureverse.org/letter_avatar_proxy/v4/letter/s/96bed5/32.png) [@stephen](https://clojureverse.org/u/stephen)
#### Post date: [March 31, 2021, 1:21pm UTC](https://clojureverse.org/t/how-to-start-with-clj-shadow-cljs-rum/7403/5 "2021-03-31T13:21:44Z")

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Okay, this seems to be a bug with rum. A bugreport was filed:

> <https://github.com/tonsky/rum/issues/233>
>
> 5 | (rum/defc hello-world \[g\]
> 6 | \[:div
> 7 | \[:h2 g\]
> \---------------^----------------------------------------------------------------
> Use of undeclared Var shadow-rum.core/g
> This happens when shadow-cljs reloads my...

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