Application deployed but with Errors 500 on pages where plaiceholder is used (missing sharp)

[aliege]

@hrishikesh

Happy to check if you are willing to share the details, or else we’ve reached an impasse.

Details was shared above:

• Here is the question I asked:

@aliege

Please can you tell me how to add all the dependencies of my package.json in my Netlify function ?

• Here is my actual netlify.toml:

@aliege

[functions]
  external_node_modules = ["sharp"]
  included_files = ["node_modules/sharp/**/*"]

[context.app]
  command = "yarn build"
  publish = ".next

---

@hrishikesh

How are you getting these errors then? There must be some deploy, right?

As said previously, it’s inside Netlify Functions (function tab inside Netlify Dashboard):

@aliege

routes displayed as functions inside Netlify dashboard

And above, there was the error i get inside the Netlify function tab:

@aliege

Example of an error code in Netlify Functions :

Oct 20, 12:56:35 PM: c5071d58 ERROR  Unhandled Promise Rejection 	{"errorType":"Runtime.UnhandledPromiseRejection","errorMessage":"Error: Cannot find module '@netlify/classnames-template-literals'\nRequire stack:\n- /var/task/.next/server/pages/_app.js\n- /var/task/node_modules/next/dist/server/require.js\n- /var/task/node_modules/next/dist/server/next-server.js\n- /var/task/.netlify/functions-internal/_api_preview-handler/handlerUtils.js\n- /var/task/.netlify/functions-internal/_api_preview-handler/_api_preview-handler.js\n- /var/task/_api_preview-handler.js\n- /var/runtime/index.mjs","reason":{"errorType":"Error","errorMessage":"Cannot find module '@netlify/classnames-template-literals'\nRequire stack:\n- /var/task/.next/server/(node:internal/process/task_queues:97:32)"]}
Oct 20, 12:56:35 PM: c5071d58 Unknown application error occurred

I also have linked these ressources previously:

• NextJS start preview: https://nextjs.org/docs/advanced-features/preview-mode#step-1-create-and-access-a-preview-api-route
• NextJS exist preview: https://nextjs.org/docs/advanced-features/preview-mode#clear-the-preview-mode-cookies
• A thread about sharp missing in Netlify function : Next.js error only in production on newly created item on dynamically routed slug page - #8 by hrishikesh (and also, it was you answering this thread )