# ERROR [unhandledRejection] read ECONNRESET in dev environment
v3.12.2: [unhandledRejection] errors with `nuxt dev`
3.xpending triage
Using router in middleware throws Nuxt Instance unavailable.
3.xpending triage
error: nuxt instance unavailable at Module.useAsyncData
3.xpending triage
unhandledRejection read ECONNRESET
pending triagepossible regression
Nuxt Build Error on VERCEL [error] [nuxt] [request error] [unhandled] [500] [nuxt] instance unavailable nuxt
3.xpending triageneeds reproduction
[Nuxt 3] Nuxt instance unavailable in async actions during SSR
3.xpending triage