Error integrating MATLAB and Visual Basic

The program is simple, it just adds the two number. Here's my matlab function that I created

    function out = addMe(a,b)
    out = a+b;
    end

I then use the NE builder toolbox to generate a .NET component

Then I'm trying to call the addMe function in Visual Basic. Here's the code:

Imports Add

Public Class Form1
    Dim a As Integer = 5
    Dim b As Integer = 10
    Dim res
    Dim addme As New AddClass

      Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
          res = addme.addMe(a, b)
          TextBox1.Text = res
      End Sub
End Class

But when I run the program, I'm getting this error:

System.InvalidOperationException was unhandled
  HResult=-2146233079
  Message=An error occurred creating the form. See Exception.InnerException for details.  The error is: Could not load type 'Add.AddClass' from assembly 'Add, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
  Source=Add
  StackTrace:
       at Add.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190
       at Add.My.MyProject.MyForms.get_Form1()
       at Add.My.MyApplication.OnCreateMainForm() in c:\users\elvin gentiles\documents\visual studio 2013\Projects\Add\Add\My Project\Application.Designer.vb:line 35
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       at Add.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.TypeLoadException
       HResult=-2146233054
       Message=Could not load type 'Add.AddClass' from assembly 'Add, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.
       Source=Add
       TypeName=Add.AddClass
       StackTrace:
            at Add.Form1..ctor()
       InnerException: