> type mismatch
>
> Expression: run(onRequest)
> [1] onRequest: proc (req: Request): Future[system.void]
> Expected one of (first mismatch at [position]):
> [1] proc run(onRequest: OnRequest)
> [1] proc run(onRequest: OnRequest; settings: Settings)
Is that the full error? Is there nothing after the word "type mismatch" ?