Navigation shows an exception

Hi,

I have converted MVC2 application to MVC4 application.When I am navigating to a page

it is showing the below exception as it is worked in MVC2

 

"CS1061: 'object' does not contain a definition for 'Count' and no extension method 'Count' accepting a first argument of type 'object' could be found (are you missing a using directive or an assembly reference?)
" 

 In View Code

Line 241:    
 

Line 242:    
 

Line 243:    <% if (Model.Count() > 0) 

Line 244:       { %> Line 245:    

Please help to fix it