i get `com.fasterxml.jackson.databind.JsonMappingE...

# getting-started

[tipsy]

i get com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of Todo: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)

when trying to map this stuff out:

data class Todo(val id: Long, val title: String, val completed: Boolean)

var todos = arrayOf<Todo>()

body:

[
 {"id":1495805800893,"title":"sdfsdafasdf","completed":false},
 {"id":1495805802445,"title":"sdfassadfasdf","completed":false},
 {"id":1495805805885,"title":"sadfsadf","completed":false}
]

todos = req.bodyAsClass(Array<Todo>::class.java)

what am i missing?