CS0135: 'Model' conflicts with the declaration 'System.Web.Mvc.ViewPage.Model'

CS0135: 'Model' conflicts with the declarationSystem.Web.Mvc.ViewPage<TModel>.Model After spending couple of hours I found the solution, before my try I tried all the option suggested on internet like: add the namespace with the class which you are using Inherits="System.Web.Mvc.ViewPage<Attachment>"  and add a <%@ Import namespace="MyProject.Models" %> Or Inherits="System.Web.Mvc.ViewPage< MyProject.Models.Attachment>"  But for me problem was different, the problem was Cause I used validation control (ValidationMessageFor) to and passed wrong parameter with "=>" expression like: Line -1: <%= Html.ValidationMessageFor(Model => Model.Employee)%></div> Line -2: <% Html.RenderPartial("Attachment", Model ); %>  Because of Line -1: mistake Line -2: was giving error "CS0135: 'Model' conflicts with the declaration 'System.Web.Mvc.ViewPage<TModel>.Model" Solution I correct above line like below <%= Html.ValidationMessageFor(Employee=> Model.Employee)%></div> <% Html.RenderPartial("Attachment", Model ); %> It was very stupid mistake but its took longer time to analyzed, Now my page is working fine.