public struct JobDetailView: View {
    @Environment(\.modelContext) private var modelContext
    @Environment(\.presentationMode) var presentationMode
    @Bindable var job: SurfaceJob
    var navigationPath: NavigationPath

    @State private var isFirstAppearance = true
    @State private var unitsDisplay = 0
    @State private var xyUnits = 0
    @State private var cutUnits = 0

...

                    if unitsDisplay > 1 {
                        Picker("Units", selection: $xyUnits) {
                            Text("Inches").tag(0)
                            Text("mm").tag(1)
                        }
                        .pickerStyle(SegmentedPickerStyle())
                    } else {
                        xyUnits = Int(unitsDisplay). // Type '()' cannot conform to 'View'
                        EmptyView()