How to: Previews in Swift Package?

1. Using Xcode 12 create a new Swift Package

2. Add a simple view with a preview to that swift package (See code below)

3. Attempt to run the preview.

4. See errors

Code Block 
#if os(iOS)
import SwiftUI
@available(iOS 14.0, *)
public struct TestView: View {
    public init() {        
    }
    public var body: some View {
        Text("Hello World")
    }
}
@available(iOS 14.0, *)
struct NoDataView_Previews: PreviewProvider {
    static var previews: some View {
        TestView()
    }
}
#endif

Code Block 
Build input file cannot be found:...TestPackagePreview.o' (in targ
SchemeBuildError: Failed to build the scheme "TestPackagePreview"
Build input file cannot be found: ...TestPackagePreview.o' (in target 'TestPackagePreviewTests' from project 'TestPackagePreview'
Link TestPackagePreviewTests (x86_64):
error: Build input file cannot be found: ...TestPackagePreview.o' (in target 'TestPackagePreviewTests' from project 'TestPackagePreview')