Unable to build Xamarin iOS Project

Hi Everyone,
I am unable to build Xamarin-Forms iOS Project, the Error I receive is this :

Could not link assemblies. Reason: Error while processing references of 'Sample.iOS, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'

I removed all the references, packages and tried re building the project, it still failed.

The references used in my iOS project now are:
System
System.Core
System.Xml
Xamarin.Forms
Xamarin.iOS

Is there any applicable solution to this?
And also is there any resource other than Microsoft Docs where we can learn Xamarin iOS Build process clearly?