4 articles
RSSHow to fix Astro content collections errors — content/config.ts moved to content.config.ts, glob loader patterns, schema validation, references between collections, live reload on add/remove, and remote loaders.
How to fix Astro 5 server islands — server:defer directive ignored, fallback slot missing, cookies/headers in deferred component, output config mismatch, dynamic island fetch URL, and caching the static shell.
How to fix next-themes errors — hydration mismatch on mount, FOUC flash before theme applies, Tailwind dark: classes not switching, ThemeProvider in App Router, defaultTheme system not respected, and TypeScript types.
How to fix React Router v7 errors — framework mode vs library mode setup, loader/action data type narrowing, route module exports missing, single-fetch revalidation, hydration mismatch, and Remix v2 migration paths.