How to use microsoft.interop.excel.workbook type in workflow foundation sequence variables?

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workflow

How to use Microsoft.interop.excel.workbook type sequence variable in workflow foundation, when I try to use the workbook type, it throws the exception as:Expression Activity type 'CSharpValue`1' requires compilation in order to run. Please ensure that the workflow has been compiled.

What I have tried:

i have added Microsoft.Office.Interop.Excel.dll in workflow foundation activity library, and created a simple activity which takes Microsoft.Office.Interop.Excel.Workbook as InArgument and tried to test this activity throgh a WorkflowConsoleApplication but it throws the exception as Activity type 'CSharpValue`1' requires compilation in order to run. Please ensure that the workflow has been compiled.

This is my XAML code:

<activity mc:ignorable="sap sap2010 sads" x:class="InteropConsoleApplication.TestAct" sap2010:expressionactivityeditor.expressionactivityeditor="C#" sap2010:workflowviewstate.idref="InteropConsoleApplication.TestAct_1" 
="" xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities" xmlns:i="clr-namespace:InteropActivityLibrary;assembly=InteropActivityLibrary" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:mca="clr-namespace:Microsoft.CSharp.Activities;assembly=System.Activities" xmlns:moie="clr-namespace:Microsoft.Office.Interop.Excel;assembly=Microsoft.Office.Interop.Excel" xmlns:moie1="clr-namespace:Microsoft.Office.Interop.Excel;assembly=InteropActivityLibrary" xmlns:sads="http://schemas.microsoft.com/netfx/2010/xaml/activities/debugger" xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation" xmlns:sap2010="http://schemas.microsoft.com/netfx/2010/xaml/activities/presentation" xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib" xmlns:sco="clr-namespace:System.Collections.ObjectModel;assembly=mscorlib" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <textexpression.namespacesforimplementation>
    <sco:collection x:typearguments="x:String">
      <x:string>System
      <x:string>System.Collections.Generic
      <x:string>System.Data
      <x:string>System.Linq
      <x:string>System.Text
      <x:string>Microsoft.Office.Interop.Excel
    
  
  <textexpression.referencesforimplementation>
    <sco:collection x:typearguments="AssemblyReference">
      <assemblyreference>InteropActivityLibrary
      <assemblyreference>Microsoft.CSharp
      <assemblyreference>Microsoft.Office.Interop.Excel
      <assemblyreference>System
      <assemblyreference>System.Activities
      <assemblyreference>System.Core
      <assemblyreference>System.Data
      <assemblyreference>System.Runtime.Serialization
      <assemblyreference>System.ServiceModel
      <assemblyreference>System.ServiceModel.Activities
      <assemblyreference>System.Xaml
      <assemblyreference>System.Xml
      <assemblyreference>System.Xml.Linq
      <assemblyreference>mscorlib
      <assemblyreference>InteropConsoleApplication
    
  
  <sequence sap2010:workflowviewstate.idref="Sequence_1">
    <sequence.variables>
      <variable x:typearguments="moie1:Workbooks" name="variable1">
    
    <i:testactivity text="{x:Null}" sap2010:workflowviewstate.idref="TestActivity_1">
      <i:testactivity.text1>
        <inargument x:typearguments="moie1:Workbooks">
          <mca:csharpvalue x:typearguments="moie1:Workbooks">variable1
        
      
    
    <sads:debugsymbol.symbol>d2FDOlxVc2Vyc1xwaXRjaGFpeWFuXHNvdXJjZVxyZXBvc1xJbnRlcm9wQ29uc29sZUFwcGxpY2F0aW9uXEludGVyb3BDb25zb2xlQXBwbGljYXRpb25cVGVzdEFjdC54YW1sAysDNw4CAQEvBTUWAgECMgsyWQIBAw==
  
  <sap2010:workflowviewstate.viewstatemanager>
    <sap2010:viewstatemanager>
      <sap2010:viewstatedata id="TestActivity_1" sap:virtualizedcontainerservice.hintsize="200,22">
      <sap2010:viewstatedata id="Sequence_1" sap:virtualizedcontainerservice.hintsize="222,146">
        <sap:workflowviewstateservice.viewstate>
          <scg:dictionary x:typearguments="x:String, x:Object">
            <x:boolean x:key="IsExpanded">True
          
        
      
      <sap2010:viewstatedata id="InteropConsoleApplication.TestAct_1" sap:virtualizedcontainerservice.hintsize="262,226">