On Xcode7 beta, I am facing the following issues:I am trying to create 2 constraints using visual format:Constraint 1: let views1 = [v1 : v1] let verticalConstraints1 = NSLayoutConstraint.constraintsWithVisualFormat(V:|-[v1], options: .allZeros, metrics: nil, views: views1)I get an error for .allZeros, What is the way to resolve this ?Constraint 2: let views2 = [v2 : v2] let verticalConstraints2 = NSLayoutConstraint.constraintsWithVisualFormat(V:|-[v2], options: .AlignAllLeft | .AlignAllRight, metrics: nil, views: views2)I get an error for .AlignAllLeft | .AlignAllRight, What is the way to resolve this ?