Use of unresolved operator '>>>-' complie in swift 3 error

[zhiblin]

[NSLayoutAttribute.left, .right, .bottom, .top].forEach { attribute in
(self.controlView, screnShotImageView) >>>- {
$0.attribute = attribute
return
}

Use of unresolved operator '>>>-'

please help me
thanks

[JesseRubio]

I came across the same issue so what I did was drag and drop the ConstraintsHalper.swift file into the project. The pod file has the ContraintsHalper.swift file embedded in it but for some reason, xcode doesn't read it. Hope this helps.