SCALA Lift MongoDB MongoRecord compilation errors

I'm attempting to setup a simple DB for the Scala Lift (2.4) framework

Below is my User.scala model.

package code.model

import net.liftweb.mongodb._
import net.liftweb.json.JsonDSL._
import com.mongodb._

class User private() extends MongoRecord[User] with ObjectIdPk[User] {

    def meta = User

    object name extends StringField(this, 50)
    object level extends IntField(this)

}

object User extends User with MongoMetaRecord[User]

When compiling I get 7 errors, but think they are all related to this first one:

[error] C:\开发者_如何学编程Lift2.4\scala_29\conference\src\main\scala\code\model\User.scala:7:
not found: type MongoRecord

Any help is much appreciated, I'm sure I'm not importing something right or have missed something obvious.

Thanks in advance

add

import net.liftweb.mongodb.record._ 
import net.liftweb.mongodb.record.field._ 
import net.liftweb.record.field._ 
import net.liftweb.record._ 

example of model https://github.com/foursquare/rogue/blob/master/src/test/scala/com/foursquare/rogue/QueryTest.scala
For queries, you can use Rogue: A Type-Safe Scala DSL for querying MongoDB

import net.liftweb.mongodb.record._

MongoRecord (and MongoMetaRecord) is in net.liftweb.mongodb.record, so you’ll have to add

import net.liftweb.mongodb.record._

and of course take care that these are included with sbt.

Have a look at https://github.com/rohit-tingendab/ks-lift, it is a working kick starter for Lift + MongoDB.