Ambiguous call between methods ASP.NET MVC

Posted by GuiPereira on Stack Overflow See other posts from Stack Overflow or by GuiPereira
Published on 2010-04-24T23:29:11Z Indexed on 2010/04/24 23:33 UTC
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I'm pretty new in ASP.NET MVC (about 3 months) and i've the followin issue:

I have a Entity Class called 'Usuario' in a ClassLibrary referenced as 'Core' and, when i create a strongly-typed view and add a html.textboxfor<> like:

<%= Html.TextBoxFor(u => u.Login) %>

it raises the following error:

Error   3   The call is ambiguous between the following methods or properties:
'Microsoft.Web.Mvc.ExpressionInputExtensions.TextBoxFor<Core.Usuario,string>(System.Web.Mvc
.HtmlHelper<Core.Usuario>, 
System.Linq.Expressions.Expression<System.Func<Core.Usuario,string>>)' and 
'System.Web.Mvc.Html.InputExtensions.TextBoxFor<Core.Usuario,string>(System.Web.Mvc.HtmlHel
per<Core.Usuario>,     System.Linq.Expressions.Expression<System.Func<Core.Usuario,string>>)'   
d:\Documents\Visual Studio 
2008\Projects\GuiPereiraMVC2\GuiPereiraMVC2\Views\Gestao\Index.aspx 20  25  

GuiPereiraMVC2

anyone knows why?

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