i have a problem in server side

Question

i have a problem in server side,in local there isn't any error
the error is:
Compiler Error Message: CS0246: The type or namespace name 'BarnamenevisanTemplateMVC' could not be found (are you missing a using directive or an assembly reference?)
Line 1: @using System.Activities.Statements
Line 2: @using BarnamenevisanTemplateMVC.Models
Line 3: @model IEnumerable<BarnamenevisanTemplateMVC.Models.GroupTemplate>
Line 4: @{
i don't know the problem is with the server or what?