Problems running on iOS

问题

I've tried on 3 different computers but it still has the same problem that prevents me from running the project on the Mac. When I use Windows and connect to my Mac to run, it shows the same error on all 3 computers.

The error message displayed:

Can not resolve reference: /Library/Frameworks/Xamarim.iOS.framework/Versions/Current/lilb/mono/Xamarin.iOS/Facades/System.Memory.dll

回答1:

Quick fix steps

1. VS on PC:

   • in iOS poject open References list
   • find Xamarin.iOS and check the path in properties
   • open containing folder, open Facades folder, copy System.Memory.dll

2. Mac:

   • open Finder and Go > Go to folder... > type Library

   • find:

     Library/Frameworks/Xamarim.iOS.framework/Versions/Current/lilb/mono/Xamarin.iOS/Facades/

   • paste System.Memory.dll

.. rebuild and you are good to go

回答2:

From what I understand, this is usually do to a pending update for Xcode.

Make sure Xcode is installed and updated. Once it is updated, launch Xcode to ensure that all updates are finished(I don't know why, but a lot of times you have to run Xcode for the update to finalize.)

Then clean and rebuild your project. That should fix the issue.

来源：https://stackoverflow.com/questions/51417228/problems-running-on-ios