Get Unresolved Identifier for MMWormhole in Watch InterfaceController.swift

Question

My Apple Watch project is in Swift. I have used CocoaPods to install MMWormhole, and I created the bridging header as described in these links:

http://bencoding.co

Answer 1

Here is my answer. After few days of struggle and help from a code mentor:

Problems are:

1) The Objective-C bridge has to set the correct path and header search path so both IOS & WatchExt can use
2) The PodFile in MMWormhole must target for both iOS & WatchExt. 
3) The code in MMWormhole npm page is not correct.  Move the instantiation of MMWormhole out and be a class Variable.

Here is the brief step by step:

Objective C Bridge

• Add App Groups for both iPhone App & Watch Ext
• Add Objective C
• Target on both
• Build Settings: Set the *.h in relative path for both iOS & Watch Ext. set the *.h relative path. e.g. ../MMWormholeTest/MMWormholeTest/MMWormholeTest-Bridging-Header.h
• Add Header Search path: ${PRODS_ROOT}/Headers , recursive for both IOS 7 Watch Ext

MMWormhole

• Cocoa pods it.
• Set pod 'MMWormhole', '~> 1.2.0’ target for both iOS & Watch Ext in Podfile
• Set #import “MMWormhole.h” in bridging header file.
• in both ViewController & InterfaceOController, set wormhole as class scope variable. e.g. var wormhole:MMWormhole!
• Instantiate MMWormhole in ViewDidLoad and awakeWithContext in WatchExt, set listener in awakeWithContext , and use self.lable.setText because of closure. e.g. self.label.setText(messageObject! as! String)
• No need to register receiver as shown in some other MMWormhole examples in Stack overflow.