Unable to run NextJS locally about herakles HOT 3 CLOSED

joshua@JOSHUA-SAMSUNG:~/WebDev/goodloops/herakles/daemon/next(master)$ npm run dev

> dev
> next dev -p 8001

ready - started server on 0.0.0.0:8001, url: http://localhost:8001
warn  - Invalid next.config.js options detected: 
  - The root value has an unexpected property, extends, which is not in the list of allowed properties (amp, analyticsId, assetPrefix, basePath, cleanDistDir, compiler, compress, crossOrigin, devIndicators, distDir, env, eslint, excludeDefaultMomentLocales, experimental, exportPathMap, future, generateBuildId, generateEtags, headers, httpAgentOptions, i18n, images, onDemandEntries, optimizeFonts, output, outputFileTracing, pageExtensions, poweredByHeader, productionBrowserSourceMaps, publicRuntimeConfig, reactStrictMode, redirects, rewrites, sassOptions, serverRuntimeConfig, staticPageGenerationTimeout, swcMinify, trailingSlash, typescript, useFileSystemPublicRoutes, webpack).

See more info here: https://nextjs.org/docs/messages/invalid-next-config
> [PWA] Compile client (static)
> [PWA] Custom worker found: /home/joshua/WebDev/goodloops/herakles/daemon/next/worker/index.js
> [PWA] Build custom worker: /home/joshua/WebDev/goodloops/herakles/daemon/next/.next/worker-development.js
> [PWA] Auto register service worker with: /home/joshua/WebDev/goodloops/herakles/daemon/next/node_modules/next-pwa/register.js
> [PWA] Service worker: /home/joshua/WebDev/goodloops/herakles/daemon/next/.next/sw.js
> [PWA]   url: /pwa/sw.js
> [PWA]   scope: /pwa/
> [PWA] Build in develop mode, cache and precache are mostly disabled. This means offline support is disabled, but you can continue developing other functions in service worker.
> [PWA] Compile server
> [PWA] Compile server
[BABEL] Note: The code generator has deoptimised the styling of /home/joshua/WebDev/goodloops/herakles/daemon/next/node_modules/herakles-lib/dist/pocket_client.js as it exceeds the max of 500KB.
event - compiled client and server successfully in 6.7s (577 modules)
wait  - compiling /_error (client and server)...
warn  - GenerateSW has been called multiple times, perhaps due to running webpack in --watch mode. The precache manifest generated after the first call may be inaccurate! Please see https://github.com/GoogleChrome/workbox/issues/1790 for more information.
warn  - Fast Refresh had to perform a full reload. Read more: https://nextjs.org/docs/basic-features/fast-refresh#how-it-works
warn  - GenerateSW has been called multiple times, perhaps due to running webpack in --watch mode. The precache manifest generated after the first call may be inaccurate! Please see https://github.com/GoogleChrome/workbox/issues/1790 for more information.
wait  - compiling / (client and server)...
warn  - GenerateSW has been called multiple times, perhaps due to running webpack in --watch mode. The precache manifest generated after the first call may be inaccurate! Please see https://github.com/GoogleChrome/workbox/issues/1790 for more information.