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vercel/errors/next-functions-config-optimized-lambdas.md
JJ Kasper 96565da1cf [next] Add shared lambdas opt-out for functions config (#4596)
As discussed this adds opting out of the shared lambdas optimization when a user adds a functions config in `now.json` or `vercel.json` since this could potentially be a breaking change. We plan to add new handling to still allow customizing this config for the combined lambdas that are created
2020-06-08 19:40:48 +00:00

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# `@vercel/next` Functions Config Optimized Lambdas Opt-out
#### Why This Warning Occurred
`@vercel/next` by default now bundles pages into optimized functions, minimizing bootup time and increasing overall application throughput.
When the `functions` config is added in `now.json` or `vercel.json`, it causes conflicts with this optimization, so it is opted-out.
#### Possible Ways to Fix It
Remove the `functions` config from your `now.json` or `vercel.json` to take advantage of this optimization.
### Useful Links
- [Functions Config Documentation](https://vercel.com/docs/configuration?query=functions#project/functions)