无法初始化scala上的类异常（可能是squeryl bug）

java.lang.NoClassDefFoundError: Could not initialize class org.mycompany.myproject.model.myschema

import org.mycompany.myproject.model.myschema
myschema.mytable

java.lang.RuntimeException: Could not deduce Option[] type of field 'field1' of class org.mycompany.myproject.model.myotherclass

object myschema extends Schema {
  val myotherclasses = table[myotherclass]
  val otherClassManyToMany = manyToManyRelation(yetanotherclass, mytables).
       via[myotherclass]((e,ssr, sse) => (e.id === sse.leftId, sse.rightId === ssr.id))
...
}

class myotherclass(
  val rightId: Long,
  val field1: Option[Long],
  val field2: Option[Long],
  val foreiginKey: Long,
  val leftId: Long) extends KeyedEntity[CompositeKey2[Long, Long]] {
  def id ={compositeKey(sesestacao, sessensor)}
}

create table telemetria.myotherclass (
  rightId numeric(8,0) references telemetria.estacao(estcodigo),
  field1 numeric(8,0),
  field2 numeric(8,0),
  foreiginKey smallint references myschema.thirdtable(idOfThird),
  leftId smallint references myschema.yetanotherclass(id),
  primary key (rightId, leftId)
);