Complication not appears in Gallery

I have simple complication for launching my app from the Watch Face. It doesn't show any data, just displays an image. I followed Adding Complications to the Gallery guide but I wasn't able to add my complication to the Complications Gallery on in iPhone Watch app.

public func getLocalizableSampleTemplate(for complication: CLKComplication, withHandler handler: @escaping (CLKComplicationTemplate?) -> Void) {

    guard let tempalte = buildTemplate(for: complication) else {
        fatalError("Unsuported Complication Family.")
    }
    handler(tempalte)
}

// Helper function to build template.

fileprivate func buildTemplate(for complication: CLKComplication) -> CLKComplicationTemplate? {

    let textProvider = CLKSimpleTextProvider.localizableTextProvider(withStringsFileTextKey: "Caffeine")

    switch complication.family {
    case .modularSmall:

        let icon = #imageLiteral(resourceName: "Complication/Modular")

        let complicationTemplate = CLKComplicationTemplateModularSmallSimpleImage()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)

        return complicationTemplate

    case .circularSmall:

        let icon = #imageLiteral(resourceName: "Complication/Circular")

        let complicationTemplate = CLKComplicationTemplateCircularSmallSimpleImage()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)
        return complicationTemplate

    case .utilitarianSmall:

        let icon = #imageLiteral(resourceName: "Complication/Utilitarian")

        let complicationTemplate = CLKComplicationTemplateUtilitarianSmallSquare()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)
        return complicationTemplate

    case .utilitarianLarge:

        let icon = #imageLiteral(resourceName: "Complication/Utilitarian")

        let complicationTemplate = CLKComplicationTemplateUtilitarianLargeFlat()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)
        complicationTemplate.textProvider = textProvider
        return complicationTemplate

    case .utilitarianSmallFlat:

        let icon = #imageLiteral(resourceName: "Complication/Utilitarian")

        let complicationTemplate = CLKComplicationTemplateUtilitarianSmallFlat()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)
        complicationTemplate.textProvider = textProvider
        return complicationTemplate

    case .extraLarge:

        let icon = #imageLiteral(resourceName: "Complication/Extra Large")

        let complicationTemplate = CLKComplicationTemplateExtraLargeSimpleImage()
        complicationTemplate.imageProvider = CLKImageProvider(onePieceImage: icon)
        return complicationTemplate

    default:
        return nil
    }
}

complicationManifest.json file.

{
  "supported complication families" : {
    "3" : "B82ADE2C-045D-491D-87DD-C24148804480.json",
    "6" : "A332202A-4B7B-49E0-83FB-DB398089E4FE.json",
    "4" : "817476CB-1683-4604-A76D-2977236448AD.json",
    "2" : "50AB27ED-0FA3-41AD-A3E7-CC9C62E48D82.json",
    "0" : "DBE31877-7BB0-4671-B065-6FE00333929E.json",
    "7" : "96966B70-AB8D-4DB3-AB64-AFDF1F09EB88.json"
  },
  "client ID" : "net.borisy.ProductDisplayName.watchkitapp.watchkitextension"
}

Project Settings.

Troubleshooting.

• Tried to Reset simulators.
• Tried both on the real device and Simulator.
• Complication Bundle saved as "Create folder reference" by dragging gallery.ckcomplication
• gallery.ckcomplication located in the project at root level. Same level as .xcodeproj.

Update.

I've added more code. I've also added ckcomplication.strings to the Watch Extension Target.

Reading Apple guide again and following line got me thinking:

For example, MyBundleName.ckcomplication.

Maybe we suppose to rename generated folder name gallery with the bundle name. I've tried to do it. No luck so far.

I watch this video again and noticed ComplicationController has prefix $(PRODUCT_MODULE_NAME) in the target preferences:

My project didn't had this prefix, I quickly found out that ComplicationController methods never called. Because that was the place when we set tintColor, default complication was displayed.

I solved this by deleting my watch app and watch extension targets and creating new from scratch. The prefix appeared in Xcode and I could see my app icon in Complications Gallery running in Simulator.