Still have 3 errors in example

[torquemada163]

LineChart.swift:

1. In:
   // LineChart class
   class LineChart: UIControl {

Error:
LineChart.swift:29:7: Class 'LineChart' does not implement its superclass's required members

1. In:
   /**
2. Fill area between charts.
   */
   func drawAreaBetweenLineCharts() {
   . . .
   . . .
   CGContextSetFillColorWithColor(context, positiveAreaColor.CGColor)

Error:
LineChart.swift:459:23: 'ClosedInterval' does not have a member named 'Generator'

DotCALayer.swift:
3. In:
class DotCALayer: CALayer {

Error:
DotCALayer.swift:5:7: Class 'DotCALayer' does not implement its superclass's required members

[zemirco]

Which version of Xcode do you use?

[torquemada163]

Xcode 6 Beta 6 (6A280e)

[torquemada163]

Damn! "Product" -> "Clean" was resolved all errors!

Sorry please......