Parser / project errors

If you use parserOptions.project, ESLint needs the correct TS config location.

Common fixes:

• Ensure tsconfig.json exists
• Set tsconfigRootDir
• For monorepos: point project to each package tsconfig

Example:

parserOptions: {
  project: ["./packages/*/tsconfig.json"],
  tsconfigRootDir: import.meta.dirname,
}