How to run playgrounds?

[wodinga]

Sorry if this seems like a silly question, but I'm trying to run the MacOS playgrounds to understand how this works, but import Charts doesn't seem to do anything. I keep getting the following:

func generateLineData() -> LineChartData
                           ^~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:59:27: error: use of undeclared type 'BarChartData'
func generateBarData() -> BarChartData
                          ^~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:108:17: error: use of unresolved identifier 'CombinedChartView'
var chartView = CombinedChartView(frame: r)
                ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:113:40: error: use of unresolved identifier 'DrawOrder'
chartView.drawOrder                 = [DrawOrder.bar.rawValue, DrawOrder.bubble.rawValue, DrawOrder.candle.rawValue, DrawOrder.line.rawValue, DrawOrder.scatter.rawValue]
                                       ^~~~~~~~~

error: CombinedChart.xcplaygroundpage:113:64: error: use of unresolved identifier 'DrawOrder'
chartView.drawOrder                 = [DrawOrder.bar.rawValue, DrawOrder.bubble.rawValue, DrawOrder.candle.rawValue, DrawOrder.line.rawValue, DrawOrder.scatter.rawValue]
                                                               ^~~~~~~~~

error: CombinedChart.xcplaygroundpage:113:91: error: use of unresolved identifier 'DrawOrder'
chartView.drawOrder                 = [DrawOrder.bar.rawValue, DrawOrder.bubble.rawValue, DrawOrder.candle.rawValue, DrawOrder.line.rawValue, DrawOrder.scatter.rawValue]
                                                                                          ^~~~~~~~~

error: CombinedChart.xcplaygroundpage:113:118: error: use of unresolved identifier 'DrawOrder'
chartView.drawOrder                 = [DrawOrder.bar.rawValue, DrawOrder.bubble.rawValue, DrawOrder.candle.rawValue, DrawOrder.line.rawValue, DrawOrder.scatter.rawValue]
                                                                                                                     ^~~~~~~~~

error: CombinedChart.xcplaygroundpage:113:143: error: use of unresolved identifier 'DrawOrder'
chartView.drawOrder                 = [DrawOrder.bar.rawValue, DrawOrder.bubble.rawValue, DrawOrder.candle.rawValue, DrawOrder.line.rawValue, DrawOrder.scatter.rawValue]
                                                                                                                                              ^~~~~~~~~

error: CombinedChart.xcplaygroundpage:26:16: error: use of unresolved identifier 'CombinedChartData'
    let data = CombinedChartData()
               ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:36:20: error: use of unresolved identifier 'ChartDataEntry'
    var entries = [ChartDataEntry]()
                   ^~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:39:24: error: use of unresolved identifier 'ChartDataEntry'
        entries.append(ChartDataEntry(x: Double(index) + 0.5, y: (Double(arc4random_uniform(15) + 5))))
                       ^~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:42:15: error: use of unresolved identifier 'LineChartDataSet'
    let set = LineChartDataSet(values: entries, label: "Line DataSet")
              ^~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:50:21: error: use of unresolved identifier 'NSUIFont'
    set.valueFont = NSUIFont.systemFont(ofSize: CGFloat(10.0))
                    ^~~~~~~~

error: CombinedChart.xcplaygroundpage:54:16: error: use of unresolved identifier 'LineChartData'
    let data = LineChartData()
               ^~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:62:21: error: use of unresolved identifier 'BarChartDataEntry'
    var entries1 = [BarChartDataEntry]()
                    ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:63:21: error: use of unresolved identifier 'BarChartDataEntry'
    var entries2 = [BarChartDataEntry]()
                    ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:67:25: error: use of unresolved identifier 'BarChartDataEntry'
        entries1.append(BarChartDataEntry(x: 0.0, y: (Double(arc4random_uniform(25) + 25))))
                        ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:71:25: error: use of unresolved identifier 'BarChartDataEntry'
        entries2.append(BarChartDataEntry(x: 0.0, yValues: [Double(arc4random_uniform(13) + 12), Double(arc4random_uniform(13) + 12)]))
                        ^~~~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:74:27: error: use of unresolved identifier 'BarChartDataSet'
    let set1            = BarChartDataSet(values: entries1, label: "Bar 1")
                          ^~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:77:27: error: use of unresolved identifier 'NSUIFont'
    set1.valueFont      = NSUIFont.systemFont(ofSize: CGFloat(10.0))
                          ^~~~~~~~

error: CombinedChart.xcplaygroundpage:80:27: error: use of unresolved identifier 'BarChartDataSet'
    let set2            = BarChartDataSet(values: entries2, label: "Bar 2")
                          ^~~~~~~~~~~~~~~

error: CombinedChart.xcplaygroundpage:84:27: error: use of unresolved identifier 'NSUIFont'
    set2.valueFont      = NSUIFont.systemFont(ofSize: CGFloat(10.0))
                          ^~~~~~~~

error: CombinedChart.xcplaygroundpage:95:16: error: use of unresolved identifier 'BarChartData'
    let data = BarChartData(dataSets: [set1, set2])
               ^~~~~~~~~~~~

[wodinga]

Looks like downloading as a swift package misses the project files, which are required to build.

[astubbs]

I have the same error, trying to run the playgrounds, having close the repository and open to directly.