dyld: symbol not found

[timfallmk]

I recently updated the dependencies on my project and migrated to XCode 10 (Swift 4.2), and am now getting the following error when attempting to run an async {} call:

dyld: Symbol not found: _$S10PromiseKit10CatchMixinPAAE5catch2on6policy_AA12PMKFinalizerCSo17OS_dispatch_queueCSg_AA0C6PolicyOys5Error_pctFfA_
  Referenced from: /Users/timfall/Library/Developer/CoreSimulator/Devices/AC33C793-B0CF-4734-8B02-21547E653088/data/Containers/Bundle/Application/A6ECAD16-8B83-4D4B-9D31-EB4E0E9A085C/WikiMessage.app/PlugIns/WikiMessage MessagesExtension.appex/../../Frameworks/AwaitKit.framework/AwaitKit
  Expected in: /Users/timfall/Library/Developer/CoreSimulator/Devices/AC33C793-B0CF-4734-8B02-21547E653088/data/Containers/Bundle/Application/A6ECAD16-8B83-4D4B-9D31-EB4E0E9A085C/WikiMessage.app/PlugIns/WikiMessage MessagesExtension.appex/../../Frameworks/PromiseKit.framework/PromiseKit

The line in reference is the following function:

func getSearchResults(searchText: String) -> [Wikipedia] {
	async {
		searchResults = try! await(networkFunctions.searchForArticle(searchText: searchText))
	}
	return searchResults
}

I'm guessing it's a breaking change with the PromiseKit version required for XCode 10?
Here's my Cartfile.resolved:

github "SwiftyJSON/SwiftyJSON" "4.1.0"
github "hyperoslo/Whisper" "6.0.2"
github "mxcl/PromiseKit" "6.4.0"
github "onevcat/Kingfisher" "4.9.0"
github "yannickl/AwaitKit" "5.0.0"

[yannickl]

I've updated the PromiseKit version in the Cartage file. Is it resolve the issue?

Note that I don't push new version, use the latest commit in the master branch.

[timfallmk]

Perfect! Looks good for release.