Scala 找不到参数tt:slick.ast.TypedType[List[List[Int]]的隐式值

在postgres中，我试图使用slick 3.2映射integer[][]类型的列

当试图定义以下内容时

def bbox = column[List[List[Int]]]("bbox")

我得到以下错误

Could not find implicit value for parameter tt: slick.ast.TypedType[List[List[Int]]]

试一试

---

scala.util.Try（s.substring（1，s.length-1）、split（“，”）.map（u.trim.toInt）.toList.getOrElse（List（））“List”（“是前5个字符，”）是最后一个字符。为什么我们要从第5个字符而不是第一个字符开始执行子字符串？因为前5个字符是“List（”.Found slickpg已经这样实现了它。隐式val intintintwitness=ElemWitness.AnyWitness.asInstanceOf[ElemWitness[List[Int]]]隐式val simpleintitListTypeMapper=new SimpleArrayJdbcType[List[Int]]（“Int[]）。to（.asInstanceOf[Seq[Array[Any]]]]。toList.map（.toList.asInstanceOf[列表[Int]]）

import com.github.tminglei.slickpg._

trait MyPostgresProfile extends ExPostgresProfile
  with PgArraySupport
  with PgDate2Support
  with PgRangeSupport
  with PgHStoreSupport
//with PgPlayJsonSupport
  with PgSearchSupport
//with PgPostGISSupport
  with PgNetSupport
  with PgLTreeSupport {
  def pgjson = "jsonb" // jsonb support is in postgres 9.4.0 onward; for 9.3.x use "json"

// Add back `capabilities.insertOrUpdate` to enable native `upsert` support; for postgres 9.5+
//override protected def computeCapabilities: Set[Capability] =
//  super.computeCapabilities + JdbcProfile.capabilities.insertOrUpdate

  override val api = MyAPI

  object MyAPI extends API with ArrayImplicits
    with DateTimeImplicits
//  with JsonImplicits
    with NetImplicits
    with LTreeImplicits
    with RangeImplicits
    with HStoreImplicits
    with SearchImplicits
    with SearchAssistants {
    implicit val intListTypeMapper = new SimpleArrayJdbcType[Int]("integer").to(_.toList)
    implicit val intListListTypeMapper = new AdvancedArrayJdbcType[List[Int]]("integer[]",
      utils.SimpleArrayUtils.fromString[List[Int]](s => 
        scala.util.Try(s.substring(5, s.length - 1).split(",").map(_.trim.toInt).toList).getOrElse(List())
      )(_).orNull,
      utils.SimpleArrayUtils.mkString[List[Int]](_.toString)
    ).to(_.toList)
  }
}

object MyPostgresProfile extends MyPostgresProfile

import MyPostgresProfile.api._

case class Something(name: String, bbox: List[List[Int]])

class SomethingTable(tag: Tag) extends Table[Something](tag, "Something") {
  def name = column[String]("name", O.PrimaryKey)
  def bbox = column[List[List[Int]]]("bbox")

  def * = (name, bbox) <> (Something.tupled, Something.unapply)
}

val query = TableQuery[SomethingTable]

libraryDependencies += "com.github.tminglei" %% "slick-pg" % "0.16.2"