Misconfigured Vercel.json Files Don't Have Clean Errors

[versecafe]

When having a misconfigured json such as having fallback regions set on a non enterprise plan, or function times over 10 seconds on the free tier when using the github based deploys deployment automatically fails, but leaves no record in vercel of an attempt and provides no logs pointing to the issue.

This is essentially a feature request asking for better handling where there is a clear message citing the error as the only way I have found to see the root cause is using the vercel cli.

Example JSON which will break all deploys on Hobby plan without giving an error message

{
  "functions": {
    "app/api/**/*.ts": {
      "maxDuration": 11
    }
}