When I try to debug on my iphone I'm getting the error in the title. The console has:
:4305:86: error: cannot find interface declaration for 'UIAlertController', superclass of 'Xamarin_Forms_Platform_iOS_ContextActionsCell_MoreActionSheetController'
:4333:4: error: 'Xamarin_Forms_Platform_iOS_ContextActionsCell_MoreActionSheetController' cannot use 'super' because it is a root class
:4305:12: warning: class 'Xamarin_Forms_Platform_iOS_ContextActionsCell_MoreActionSheetController' defined without specifying a base class [-Wobjc-root-class]
:4305:83: note: add a super class to fix this problem
:6256:110: warning: class method '+class' not found (return type defaults to 'id') [-Wobjc-method-access]