I try to transphorm Seq[\/[String,A]]
to \/[String,Seq[A]]
After some research a find the sequenceU method. But I'm unable to use it, I think by cause of a bad import.
import scalaz.syntax.id._
import scalaz.Monoid
import scalaz.ValidationNel
import scalaz._
import scalaz.syntax.std.option._
import scalaz.syntax.traverse._
Maybe I'm not importing an implicit Traversable as Applicative
The compiler error message is
value sequenceU is not a member of Seq[scalaz.\/[String,A]]