"OBJC_CLASS$_SKOverlay", referenced from: objc-class-ref in GoogleMobileAds(GADInAppStoreMonitor.o) "OBJC_CLASS$_SKOverlayAppConfiguration", referenced from: objc-class-ref in GoogleMobileAds(GADInAppStoreMonitor.o)

that's suddenly occured to me after i add Google-Mobile-Ads-SDK to my project and i tried to add many of frameworks but it didn't worked enter image description here

I am looking to add ads to my Xcode project using google ads. I already downloaded cocoapods successfully and was able to connect it to my Xcode project but then I ran into an error while trying to download the pod required to get ads.

### Error 

LoadError - dlsym(0x7fdb515e63e0, Init_ffi_c): symbol not found - /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi_c.bundle /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi.rb:6:in `rescue in <top (required)>' /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/lib/ffi.rb:3:in `<top (required)>' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /Library/Ruby/Gems/2.6.0/gems/ethon-0.12.0/lib/ethon.rb:2:in `<top (required)>' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /Library/Ruby/Gems/2.6.0/gems/typhoeus-1.4.0/lib/typhoeus.rb:2:in `<top (required)>' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/sources_manager.rb:74:in `cdn_url?' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/sources_manager.rb:36:in `create_source_with_url' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/sources_manager.rb:21:in `find_or_create_source_with_url' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer/analyzer.rb:178:in `block in sources' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer/analyzer.rb:177:in `map' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer/analyzer.rb:177:in `sources' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer/analyzer.rb:143:in `update_repositories' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:235:in `block in resolve_dependencies' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/user_interface.rb:64:in `section' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:234:in `resolve_dependencies' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:160:in `install!' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/command/install.rb:52:in `run' /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/lib/cocoapods/command.rb:52:in `run' /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.10.1/bin/pod:55:in `<top (required)>' /usr/local/bin/pod:23:in `load' /usr/local/bin/pod:23:in `<main>'

here is the error message I get while trying to use the command install pod --repo-update. I updated cococapods already and still had this problem. I am using an M1 MacBook Pro for this. Do you know how to solve this?

I am developing a B2C application for local business. I will be developing separate apps for businesses and customers but to cater to the customers who do not have the app yet, I wish to provide Businesses with the functionality that they can send invoices to their customer's WhatsApp through my Business App from their WhatsApp Number.

How can I achieve this?

Thanks in advance

Hoping this community can help. We have a mobile app on iOS only. So, we haven't implemented any IDFA libraries to track conversions via Google Ads and relied solely on the Vendor Identifier. However, we're seeing a significant drop in performance/conversion tracking within Google Ads compared to 2019 where we'd see thousands of installs.

Per Google Ads support recommendation, we updated the Firebase SDK with the SKAdNetwork automatically calling registerAppForAdNetworkAttribution, but still seeing no conversions registered in Google Ads. All integrations within Firebase are correct.

Without having to add in the IDFA libraries, is there any other recommendation you have? Adding a specific plist dictionary for Google Ads or additional API calls? I found one for AdMods but we don't do any in-app advertising so assuming that's not applicable to us.

Any assistance would help!

Thanks in advance.

after last update our app start crashing randomly on some user devices . i can't get this crash on my ipad in release version, so may be it is device specific or ios version specific. crash seems to be google ads related.

while i am trying to find a reason , may be somebody has an idea where to dig

thanks in advance. below info from appcentre.ms . it's from app main crash ,but crash happens in different places

pplication.Main (System.String[] args) SIGABRT: Objective-C exception thrown. Name: NSInvalidArgumentException Reason: Can't add self as subview Native stack trace: 0 CoreFoundation 0x000000019ad74604 409609CD-8410-38E1-BA5D-BDED609D2018 + 1222148 1 libobjc.A.dylib 0x000000019aa96bcc objc_exception_throw + 56 2 CoreFoundation 0x000000019ac6ab28 409609CD-8410-38E1-BA5D-BDED609D2018 + 133928 3 UIKitCore 0x000000019f2c6c54 3062FF32-2182-37A2-A5F9-B38F6FB6B8C3 + 15547476 4 MyApp.iOS 0x00000001035e1108 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 18464880 5 MyApp.iOS 0x000000010355ba94 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 17918460 6 MyApp.iOS 0x0000000103781720 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20170376 7 MyApp.iOS 0x00000001037654d8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20055104 8 MyApp.iOS 0x0000000103764a20 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20052360 9 MyApp.iOS 0x0000000103760c60 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20036552 10 MyApp.iOS 0x0000000103760354 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20034236 11 MyApp.iOS 0x0000000103763d24 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20049036 12 MyApp.iOS 0x0000000103763a30 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20048280 13 MyApp.iOS 0x0000000103765938 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20056224 14 MyApp.iOS 0x00000001037654d8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20055104 15 MyApp.iOS 0x0000000103764a20 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20052360 16 MyApp.iOS 0x0000000103760c60 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20036552 17 MyApp.iOS 0x0000000103760354 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20034236 18 MyApp.iOS 0x0000000103763d24 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20049036 19 MyApp.iOS 0x0000000103763a30 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20048280 20 MyApp.iOS 0x0000000103765938 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20056224 21 MyApp.iOS 0x00000001037654d8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20055104 22 MyApp.iOS 0x0000000103764a20 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20052360 23 MyApp.iOS 0x000000010376f548 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20096176 24 MyApp.iOS 0x000000010376e4b0 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20091928 25 MyApp.iOS 0x000000010376e328 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20091536 26 MyApp.iOS 0x00000001050f8e8c GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 46874100 27 MyApp.iOS 0x000000010376a5cc GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20075828 28 MyApp.iOS 0x000000010378f6f4 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 20227676 29 MyApp.iOS 0x00000001028acc20 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 4619144 30 MyApp.iOS 0x00000001055382a8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 51327504 31 MyApp.iOS 0x00000001055f3784 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 52094700 32 MyApp.iOS 0x00000001055f6fe8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 52109136 33 MyApp.iOS 0x00000001024e523c GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 655780 34 MyApp.iOS 0x00000001024fb474 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 746460 35 UIKitCore 0x000000019f0138b0 3062FF32-2182-37A2-A5F9-B38F6FB6B8C3 + 12716208 36 UIKitCore 0x000000019efe1640 3062FF32-2182-37A2-A5F9-B38F6FB6B8C3 + 12510784 37 UIKitCore 0x000000019effe364 3062FF32-2182-37A2-A5F9-B38F6FB6B8C3 + 12628836 38 UIKitCore 0x000000019f2cdc7c 3062FF32-2182-37A2-A5F9-B38F6FB6B8C3 + 15576188 39 QuartzCore 0x00000001a18674ac BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 1381548 40 QuartzCore 0x00000001a186d604 BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 1406468 41 QuartzCore 0x00000001a1878148 BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 1450312 42 QuartzCore 0x00000001a17c0e34 BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 699956 43 QuartzCore 0x00000001a17ea7c4 BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 870340 44 QuartzCore 0x00000001a17eb1d8 BA9ECCEE-9F61-3BAA-B8A8-8EB3B7E0A24F + 872920 45 CoreFoundation 0x000000019acf1fb8 409609CD-8410-38E1-BA5D-BDED609D2018 + 688056 46 CoreFoundation 0x000000019aceceac 409609CD-8410-38E1-BA5D-BDED609D2018 + 667308 47 CoreFoundation 0x000000019aced328 409609CD-8410-38E1-BA5D-BDED609D2018 + 668456 48 CoreFoundation 0x000000019acecc34 CFRunLoopRunSpecific + 424 49 GraphicsServices 0x00000001a4e3638c GSEventRunModal + 160 50 UIKitCore 0x000000019ee1f22c UIApplicationMain + 1932 51 MyApp.iOS 0x00000001035fc2c8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 18575920 52 MyApp.iOS 0x00000001035380b0 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 17772568 53 MyApp.iOS 0x0000000103538034 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 17772444 54 MyApp.iOS 0x0000000102526ed4 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 925244 55 MyApp.iOS 0x00000001028acc20 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 4619144 56 MyApp.iOS 0x00000001055382a8 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 51327504 57 MyApp.iOS 0x00000001055f3784 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 52094700 58 MyApp.iOS 0x00000001055f99dc GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 52119876 59 MyApp.iOS 0x0000000105516860 GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 51189704 60 MyApp.iOS 0x00000001056d3664 xamarin_release_block_on_main_thread + 27000 61 MyApp.iOS 0x0000000102526a9c GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth + 924164 62 libdyld.dylib 0x000000019ab74800 876FB49A-BFBA-37BF-AD37-6FFC90F7F981 + 6144 

Stack traces Runtime.ThrowNSException (System.IntPtr ns_exception) Runtime.throw_ns_exception (System.IntPtr exc) (wrapper native-to-managed) ObjCRuntime.Runtime.throw_ns_exception(intptr) (wrapper managed-to-native) ObjCRuntime.Messaging.objc_msgSend(intptr,intptr,intptr) UIView.AddSubview (UIKit.UIView view) FrameRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) RendererPool.UpdateRenderers (Xamarin.Forms.Element newElement) RendererPool.UpdateNewElement (Xamarin.Forms.VisualElement newElement) VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement) VisualElementPackager.OnRendererElementChanged (System.Object sender, Xamarin.Forms.Platform.iOS.VisualElementChangedEventArgs args) VisualElementRenderer`1[TElement].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) RendererPool.UpdateRenderers (Xamarin.Forms.Element newElement) RendererPool.UpdateNewElement (Xamarin.Forms.VisualElement newElement) VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement) VisualElementPackager.OnRendererElementChanged (System.Object sender, Xamarin.Forms.Platform.iOS.VisualElementChangedEventArgs args) VisualElementRenderer`1[TElement].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) ViewCellRenderer+ViewTableCell.UpdateCell (Xamarin.Forms.ViewCell cell) ViewCellRenderer+ViewTableCell.set_ViewCell (Xamarin.Forms.ViewCell value) ViewCellRenderer.GetCell (Xamarin.Forms.Cell item, UIKit.UITableViewCell reusableCell, UIKit.UITableView tv) XFGlossViewCellRenderer.GetCell (Xamarin.Forms.Cell item, UIKit.UITableViewCell reusableCell, UIKit.UITableView tv) CellTableViewCell.GetNativeCell (UIKit.UITableView tableView, Xamarin.Forms.Cell cell, System.Boolean recycleCells, System.String templateId) ListViewRenderer+ListViewDataSource.GetCell (UIKit.UITableView tableView, Foundation.NSIndexPath indexPath) (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr) UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) Application.Main (System.String[] args) (wrapper managed-to-native) ObjCRuntime.Messaging.objc_msgSend(intptr,intptr,intptr) UIView.AddSubview (UIKit.UIView view) FrameRenderer.OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) RendererPool.UpdateRenderers (Xamarin.Forms.Element newElement) RendererPool.UpdateNewElement (Xamarin.Forms.VisualElement newElement) VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement) VisualElementPackager.OnRendererElementChanged (System.Object sender, Xamarin.Forms.Platform.iOS.VisualElementChangedEventArgs args) VisualElementRenderer`1[TElement].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) RendererPool.UpdateRenderers (Xamarin.Forms.Element newElement) RendererPool.UpdateNewElement (Xamarin.Forms.VisualElement newElement) VisualElementPackager.SetElement (Xamarin.Forms.VisualElement oldElement, Xamarin.Forms.VisualElement newElement) VisualElementPackager.OnRendererElementChanged (System.Object sender, Xamarin.Forms.Platform.iOS.VisualElementChangedEventArgs args) VisualElementRenderer`1[TElement].OnElementChanged (Xamarin.Forms.Platform.iOS.ElementChangedEventArgs`1[TElement] e) VisualElementRenderer`1[TElement].SetElement (TElement element) IVisualElementRenderer.SetElement (Xamarin.Forms.VisualElement element) ViewCellRenderer+ViewTableCell.UpdateCell (Xamarin.Forms.ViewCell cell) ViewCellRenderer+ViewTableCell.set_ViewCell (Xamarin.Forms.ViewCell value) ViewCellRenderer.GetCell (Xamarin.Forms.Cell item, UIKit.UITableViewCell reusableCell, UIKit.UITableView tv) XFGlossViewCellRenderer.GetCell (Xamarin.Forms.Cell item, UIKit.UITableViewCell reusableCell, UIKit.UITableView tv) CellTableViewCell.GetNativeCell (UIKit.UITableView tableView, Xamarin.Forms.Cell cell, System.Boolean recycleCells, System.String templateId) ListViewRenderer+ListViewDataSource.GetCell (UIKit.UITableView tableView, Foundation.NSIndexPath indexPath) (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr) UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) Application.Main (System.String[] args)