How to resolve assembly dependency for 1.5.1 in WP ?

Hello,
I upgraded xamarin forms version from 1.4.0 to 1.5.1. In this new version Android and IOS working fine but getting assembly dependency issues for WP. I upgrade my all references but no luck, getting following errors :

Error Cannot resolve dependency to assembly 'Xamarin.Forms.Core, Version=1.4.0.0, Culture=neutral, PublicKeyToken=null' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.

Error The name "LocalizedStrings" does not exist in the namespace

Error Cannot resolve dependency to assembly 'Xamarin.Forms.Core, Version=1.4.0.0, Culture=neutral, PublicKeyToken=null' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.

Attached images for Core and WP project references :
Please let me know where I going to wrong.

Thank you