Failing to find api-utils when deployed.

[olaven]

Hi!

I have written a Next.js-app and deployed it with Vercel. When accessing an API-endpoint (/pages/api/auth/login.ts, specifically a login-route using this auth0 library) I am getting the following error:

020-06-15T18:28:26.202Z	undefined	ERROR	Uncaught Exception 	{"errorType":"Runtime.ImportModuleError","errorMessage":"Error: Cannot find module 'next/dist/next-server/server/api-utils'\nRequire stack:\n- /var/task/.next/serverless/pages/api/auth/me.js\n- /var/task/now__launcher.js\n- /var/runtime/UserFunction.js\n- /var/runtime/index.js","stack":["Runtime.ImportModuleError: Error: Cannot find module 'next/dist/next-server/server/api-utils'","Require stack:","- /var/task/.next/serverless/pages/api/auth/me.js","- /var/task/now__launcher.js","- /var/runtime/UserFunction.js","- /var/runtime/index.js","    at _loadUserApp (/var/runtime/UserFunction.js:100:13)","    at Object.module.exports.load (/var/runtime/UserFunction.js:140:17)","    at Object.<anonymous> (/var/runtime/index.js:43:30)","    at Module._compile (internal/modules/cjs/loader.js:1133:30)","    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)","    at Module.load (internal/modules/cjs/loader.js:977:32)","    at Function.Module._load (internal/modules/cjs/loader.js:877:14)","    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:74:12)","    at internal/main/run_main_module.js:18:47"]}
                          Duration: 196.43 ms	Billed Duration: 200 ms	Memory Size: 1024 MB	Max Memory Used: 14 MB	
                          Unknown application error occurred
                          Runtime.ImportModuleError

This only happens when deployed, and started roughly four days ago, working fine before that.
Does anyone have experience with something like this?

Any help is hugely appreciated! 😄

[olaven]

This error disappeared when adding .github and .vscode to .vercelignore. 🤔