Scalaz-nio.scala

import scalaz.nio._
import scalaz.nio.channels.{AsynchronousServerSocketChannel, AsynchronousSocketChannel}
import scalaz.zio.clock.Clock
import scalaz.zio.console._
import scalaz.zio.{App, ZIO}

object Main extends App {
  override def run(args: List[String]): ZIO[Environment, Nothing, Int] =
    myAppLogic
      .either
      .map(_.fold(e => { e.printStackTrace(); 1 }, _ => 0))

  val myAppLogic: ZIO[Clock with Console, Exception, Unit] = {
    SocketAddress.inetSocketAddress(1337).map{ addr =>
      AsynchronousServerSocketChannel().map { socket =>
        socket.bind(addr)
        socket
      }.bracket(_.close) { socket =>
        socket.accept.bracket(_.close) { conn =>
          doWork(conn).fork
        }.forever
      }
    }
  }

  def doWork(work: AsynchronousSocketChannel): ZIO[Console, Exception, Unit] = {
    for {
      chunk <- work.read(16)
      str = chunk.toArray.map(_.toChar).mkString
      _ <- putStrLn("content: " + str)
    } yield ()
  }
}

Gives an error when compiling:

Error:(18, 19) type mismatch;
 found   : scalaz.zio.IO[Exception,Unit]
    (which expands to)  scalaz.zio.ZIO[Any,Exception,Unit]
 required: scalaz.zio.ZIO[?, Nothing, _]
      }.bracket(_.close) { socket =>