---
id: b099f713-17ad-4952-a63c-1b21ea75c816
type: fix
title: "Missing Handlebars join helper"
tags: [vagabond-rpg, foundryvtt, handlebars, fix]
importance: 0.5
confidence: 0.8
created: "2025-12-16T20:46:30.576546+00:00"
updated: "2025-12-16T20:46:30.576546+00:00"
---

Item sheets for class and perk types failed to render with 'Missing helper: join' error. Templates used {{join arr ", "}} but helper was never registered. Fixed by adding Handlebars.registerHelper('join', (arr, separator) => arr.join(separator)) in vagabond.mjs.