Hello, I was following along with the Next.js lessons and I’ve encountered an error while following the instructions for chapter 15. Specifically, in the ‘Using the ESLint accessibility plugin in Next.js’ section of the chapter. Console Output E:\Code\Learn\WebDev\React-Next.js\NextJs\nextjs-app\n…

check this one [ESLint v10]: TypeError: contextOrFilename.getFilename is not a function when running ESLint v10 · Issue #89764 · vercel/next.js · GitHub for temp fix

Next.js error "contextOrFilename.getFilename is not a function" during pnpm lint

Help

nfdcopilot-5305 (ADALIGO) March 21, 2026, 12:38pm 7

The error comes from tooling mismatch not from you Luknuts56, just downgrade ESLint and you’re good

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Next.js error "contextOrFilename.getFilename is not a function" during pnpm lint

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