Linker error when building for Release in Unified API (arm64) environment on Xamarin IOS

[gundorfj]

Hi,
I can't seem to be around a linker error (found below) I get when I install the latest TSMiniWebBrowser (v1.2) from Xamarin Component Store and making a Release build. I have a feeling that the TSMiniWebBrowser DLL hasn't been generated with the arm64 supported architecture enabled, which is necessary for new APP's to App Store. Maybe I'm all wrong, so I hope that someone can help me, please.
Thanks in advance.

I'm running Xamarin Studio Version 5.7 (build 661) on Mac OS X 10.10.1, with Xcode 6.1.1 (6611)
Build 6A2008a

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MTOUCHTASK: warning MT1301: Native library libTSMiniWebBrowser.a (i386, armv7, armv7s) was ignored since it does not match the current build architectures (armv7, arm64)
MTOUCHTASK: warning MT1301: Native library libTSMiniWebBrowser.a (i386, armv7, armv7s) was ignored since it does not match the current build architectures (armv7, arm64)
Process exited with code 1, command:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -lc++ -liconv -lz -ObjC -fobjc-arc -lsqlite3 -ObjC -fobjc-arc -Wl,-pie -arch arm64 -miphoneos-version-min=7.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS8.1.sdk /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/ICONHairSpa.exe.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/Xamarin.iOS.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/mscorlib.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.Xml.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.Core.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/SharedOndoLibrary.IOSPhone.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.Xml.Linq.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/OndoCommonFiles.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/MonoTouch.Dialog-1.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.Json.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/ScanditSDK.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/MonoTouch.FacebookConnect.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/MonoTouch.Dialog.PickerElement.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/TSMiniWebBrowser.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/SDWebImage.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/BTProgressHUD.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/System.Web.Services.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/Xamarin.Auth.iOS.dll.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/registrar.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/main.arm64.o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/libFacebookSDK.a /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/libSDWebImage.a -force_load /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/libscanditsdk-iphone-4.3.0.a -o /Users/jsgundorf/Projects/OndoDots/ICONHairSpa/obj/iPhone/Release/mtouch-cache/64/Output/ICONHairSpa -framework AVFoundation -framework AudioToolbox -framework QuartzCore -framework CoreImage -framework CoreLocation -framework Foundation -framework MapKit -framework MobileCoreServices -framework Security -framework SystemConfiguration -framework CoreGraphics -framework MediaPlayer -framework MessageUI -framework UIKit -framework CFNetwork -framework CoreVideo -framework CoreMedia -framework ImageIO -weak_framework Accounts -weak_framework Social -lz -liconv -u _FBAppEventNameAchievedLevel -u _FBAppEventNameActivatedApp -u _FBAppEventNameAddedPaymentInfo -u _FBAppEventNameAddedToCart -u _FBAppEventNameAddedToWishlist -u _FBAppEventNameCompletedRegistration -u _FBAppEventNameCompletedTutorial -u _FBAppEventNameInitiatedCheckout -u _FBAppEventNameRated -u _FBAppEventNamePurchased -u _FBAppEventNameSearched -u _FBAppEventNameSpentCredits -u _FBAppEventNameUnlockedAchievement -u _FBAppEventNameViewedContent -u _FBAppEventParameterNameContentID -u _FBAppEventParameterNameContentType -u _FBAppEventParameterNameCurrency -u _FBAppEventParameterNameDescription -u _FBAppEventParameterNameLevel -u _FBAppEventParameterNameMaxRatingValue -u _FBAppEventParameterValueNo -u _FBAppEventParameterNameNumItems -u _FBAppEventParameterNamePaymentInfoAvailable -u _FBAppEventParameterNameRegistrationMethod -u _FBAppEventParameterNameSearchString -u _FBAppEventParameterNameSuccess -u _FBAppEventParameterValueYes -u _FBAppEventsLoggingResultNotification -u _FBErrorAppEventsReasonKey -u _FBErrorDialogInvalidLikeObjectID -u _FBErrorDialogInvalidOpenGraphActionParameters -u _FBErrorDialogInvalidOpenGraphObject -u _FBErrorDialogInvalidShareParameters -u _FacebookNativeApplicationDomain -u _FacebookSDKDomain -u _FBErrorHTTPStatusCodeKey -u _FBInvalidOperationException -u _FBErrorLoginFailedOriginalErrorCode -u _FBErrorLoginFailedReason -u _FBErrorLoginFailedReasonInlineCancelledValue -u _FBErrorLoginFailedReasonInlineNotCancelledValue -u _FBErrorLoginFailedReasonOtherError -u _FBErrorLoginFailedReasonSystemDisallowedWithoutErrorValue -u _FBErrorLoginFailedReasonSystemError -u _FBErrorLoginFailedReasonUnitTestResponseUnrecognized -u _FBErrorLoginFailedReasonUserCancelledSystemValue -u _FBErrorLoginFailedReasonUserCancelledValue -u _FBErrorParsedJSONResponseKey -u _FBErrorReauthorizeFailedReasonSessionClosed -u _FBErrorReauthorizeFailedReasonUserCancelled -u _FBErrorReauthorizeFailedReasonUserCancelledSystem -u _FBErrorReauthorizeFailedReasonWrongUser -u _FBErrorSessionKey -u _FBErrorUnprocessedURLKey -u _FBInsightsLoggingResultNotification -u _FBGraphBasePath -u _FBNonJSONResponseProperty -u _FBSessionDidBecomeClosedActiveSessionNotification -u _FBSessionDidBecomeOpenActiveSessionNotification -u _FBSessionDidSetActiveSessionNotification -u _FBSessionDidUnsetActiveSessionNotification -u _FBTokenInformationAppIDKey -u _FBTokenInformationDeclinedPermissionsKey -u _FBTokenInformationExpirationDateKey -u _FBTokenInformationIsFacebookLoginKey -u _FBTokenInformationLoginTypeLoginKey -u _FBTokenInformationPermissionsKey -u _FBTokenInformationPermissionsRefreshDateKey -u _FBTokenInformationRefreshDateKey -u _FBTokenInformationTokenKey -u _FBTokenInformationUserFBIDKey -u _FBLoggingBehaviorAccessTokens -u _FBLoggingBehaviorAppEvents -u _FBLoggingBehaviorCacheErrors -u _FBLoggingBehaviorDeveloperErrors -u _FBLoggingBehaviorFBRequests -u _FBLoggingBehaviorFBURLConnections -u _FBLoggingBehaviorInformational -u _FBLoggingBehaviorPerformanceCharacteristics -u _FBLoggingBehaviorSessionStateTransitions -u _FBLoggingBehaviorUIControlErrors -u _FBPostObject -u _SDWebImageDownloadStartNotification -u _SDWebImageDownloadStopNotification -u _monotouch_GetFolderPath -u _monotouch_timezone_get_data -u _monotouch_log -u _xamarin_release_managed_ref -u _xamarin_create_managed_ref -u _xamarin_get_block_descriptor -u _xamarin_IntPtr_objc_msgSend_IntPtr -u _xamarin_IntPtr_objc_msgSendSuper_IntPtr -u _CreateZStream -u _CloseZStream -u _Flush -u _ReadZStream -u _WriteZStream -u _monotouch_start_wwan /Library/Frameworks/Xamarin.iOS.framework/Versions/8.6.0.51/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libmonosgen-2.0.a /Library/Frameworks/Xamarin.iOS.framework/Versions/8.6.0.51/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libmonotouch-sgen.a /Library/Frameworks/Xamarin.iOS.framework/Versions/8.6.0.51/SDKs/MonoTouch.iphoneos.sdk/usr/lib/libapp.a
Undefined symbols for architecture arm64:
"OBJC_CLASS$_TSMiniWebBrowser", referenced from:
objc-class-ref in registrar.arm64.o
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
MTOUCHTASK: error MT5211: Native linking failed, undefined Objective-C class: OBJC_CLASS$_TSMiniWebBrowser. If 'OBJC_CLASS$_TSMiniWebBrowser' is a protocol from a third-party binding, please check that it has the [Protocol] attribute in its api definition file, otherwise verify that all the necessary frameworks have been referenced and native libraries are properly linked in.