Linker.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Exclude EF.Core dependencies from Xamarin.iOS linking -->
<linker>
	<assembly fullname="System">
		<type fullname="System.ComponentModel.ReferenceConverter">
			<method signature="System.Void .ctor(System.Type)" />
		</type>
	</assembly>
    <assembly fullname="mscorlib">
        <type fullname="System.String">
            <method name="Compare" />
            <method name="CompareTo"/>
            <method name="ToUpper"/>
            <method name="ToLower"/>
        </type>
        <type fullname="System.DateTime" preserve="methods" />
    </assembly>
    <assembly fullname="System.Core">
        <type fullname="System.Linq.Expressions.Expression`1"/>
        <type fullname="System.Linq.Queryable"/>
    </assembly>
</linker>