# Typecheck error with multiply layers app.config
Nuxt generates invalid types for an array of objects in runtimeConfig - nuxt.config.ts
typesworkaround availablebugupstream
[@vue/compiler-sfc] Failed to resolve extends base type
pending triage
Modules in nuxt.config.ts... TS2589: Type instantiation is excessively deep and possibly infinite
3.xpending triageneeds reproduction
Type instantiation is excessively deep and possibly infinite
3.xdxbug🍰 p2-nice-to-have
TS2589: Type instantiation is excessively deep and possibly infinite
3.xpending triage
fix: jose v4.14.2 leads to infinite type instantiation (TS2589)
types3.xbug🔨 p3-minor