---
id: 12c8c07a-44ef-4a4c-bda8-65b1d7eeb028
type: solution
title: "Nuxt 4 explicit Pinia imports required"
tags: [strat-gameplay-webapp, nuxt, vue, pinia, fix]
importance: 0.7
confidence: 0.8
created: "2026-01-14T02:41:16.746442+00:00"
updated: "2026-01-14T02:41:16.746442+00:00"
---

Nuxt 4 breaking change: Pinia stores no longer auto-import. Must explicitly import stores in layouts, pages, and components. Fixed layouts/game.vue with: import { useAuthStore } from '~/store/auth'. Error was: ReferenceError: useAuthStore is not defined