Could not resolve "../styles/Randomfacts.css" from "src/pages/Randomfacts.tsx" Error: Command "npm run build" exited with 1 This was my first deploy to Vercel, and my first thought was that I'd broken something in that commit. I opened Randomfacts.tsx and found it importing Randomfacts.css — capital R. Then I checked the actual file sitting in src/styles/, and its name was randomfacts.css, lowercase. So the import was wrong. Fine. But that raised a much more confusing question: ...