It is compatible. https://support.apple.com/en-gb/guide/iphone/iphe3fa5df43/ios So you probably had an installation problem. Some hints here on how to fix it: https ://www.imobie. com/iphone-tips/how-to-fix-an-error-occurred-installing-new-ios.htm

There are more and more limitations to such information access (because it lets you get information on user location, hence privacy issue). This may provide some hint to a solution: https://stackoverflow.com/questions/63130232/cncopycurrentnetworkinfo-not-working-with-ios-14 or this older (5 years !) thread: https://developer.apple.com/forums/thread/11807 or this (but that's more general conditions than practical solution) https ://blog.appnation. co/how-to-access-wifi-ssid-on-ios-13-using-swift-40c4bba3c81d

Could you show the code ? There must be a place where you decode JSON (deserialize). Maybe your JSON data is incorrect ? That can cause such type of error (even though not the same error as yours) : https://stackoverflow.com/questions/46284163/alamofire-responseserializationfailedalamofire-aferror-responseserializationfai Did it work before Xcode 12.5 ? Are you sure to have the most recent Alamofire pod version ?

I've not real understanding of what could occur here. Just some guessing. Could it be you get access to different resources (or lack some) when running from the iPhone as compared as from Xcode ? Or different versions of some packages ? Could you also check what are the mode in each case (debug ? release ?). And try to change. Did you contact DJI about their toolkit ? Otherwise, you could try to contact developers support or burn a DST ticket if you do not get further info on this forum. Good luck.

Here is a message proposed by Google: https ://developers.google. com/admob/ios/ios14 keyNSUserTrackingUsageDescription/key stringThis identifier will be used to deliver personalized ads to you./string So I think you should add mention of ads delivering.

Am I doing something wrong? Yes, you are doing something wrong. You do not give useful information about your code ! Your post is really useless. So please, provide the code that retrieves the url.

OK, that's the exact same code as in book. But there are a lot of other stuff that could be wrong. Are you sure you followed exactly all the steps ? Impossible to say with our seeing code.

Did you install the provided server as described on page 447 ? Run the Server The Restaurant folder included with this project contains the binary file for the server, OpenRestaurant.app. Right-click OpenRestaurant and click Open in the dropdown. Depending on your Mac's security configuration, you may see a warning dialog. Click Open to indicate that you trust the app. Check also if port is 8080 or 8090 (as written at top of page 448). I understand it should be 8080.

Have you looked at the images directory ? Are they effectively .png images ? Have you checked also menuItems ? add somewhere print("menuItems", menuItems)

The url is a url to the server on your Mac. http://localhost:8080/images/*.png have you configured your web server correctly ? I do not see in their doc where they set the 8080 port on the web server. This should direct to Library/WebServer/Documents/ Directory

What is idQr ? How is it set ? Could you test with a print on line 2 of VerQR that it is not nil ? What doesn't work ? Is it compartirBtn or VerQR ?

You can do a lot when app is in background or when app resumes: https://developer.apple.com/documentation/foundation/url_loading_system/downloading_files_in_the_background

If you wait for any developer here to do something for this, you'll wait for long… For such request, you should contact Apple support directly, but with probably zero chance to be heard. Only 6s and 6Plus can have iOS 13 or even 14. So, keep with iOS 12 and enjoy…

So that we can reproduce, can you post the exact code where you call customPageControl ? And explain where you call it.

What is your question ? I hope you are not expecting someone to develop for you ! That's not the purpose of the forum. As a developer, you should start doing it yourself and ask specific question if you have problem.