Could not load file or assembly 'Microsoft.SqlServer.SqlClrProvider'?

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C#

hi In my project i use SMO and threads for generating script from a data base and create a new database(in sql server 2008),then transfer tables,...(except data)in to the new one.
I write the code below,so this error appear in line which create a server connection.

the error :

Could not load file or assembly 'Microsoft.SqlServer.SqlClrProvider, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.

this is the mycode:

Thread th = new Thread(new ThreadStart(CreatDB));
th.Start();
public void CreatDB()
{
try
{


SqlConnection con2;
conString2 = " Data Source=MC040;Initial Catalog= CurrentDataBaseName;Integrated Security=SSPI";
con2 = new SqlConnection(conString2);

ServerConnection conn = new ServerConnection(con2);
Server srv = new Server(conn);

Transfer trsfrDB = new       Transfer(srv.Databases[CurrentDataBaseName]);
Microsoft.SqlServer.Management.Smo.Database newDatbase = new Microsoft.SqlServer.Management.Smo.Database(srv, "NewDBName");
newDatbase.Create();
ScriptingOptions options = new ScriptingOptions();
options.DriAll = true;
options.ClusteredIndexes = true;
options.Default = true;
options.Indexes = true;
trsfrDB.Options = options;
trsfrDB.CopyAllObjects = true;
trsfrDB.CopyAllViews = true;
trsfrDB.CopyAllUsers = true;
trsfrDB.CopyAllDefaults = true;
trsfrDB.CopyAllDatabaseTriggers = true;
trsfrDB.CopyAllUserDefinedTableTypes = true;
trsfrDB.CopyAllSchemas = true;
//Copy all user defined data types from source to destination
trsfrDB.CopyAllUserDefinedDataTypes = true;
//Copy all tables from source to destination
trsfrDB.CopyAllTables = true;
//Copy data of all source tables to destination tables
//It actually generates INSERT statement for destination
//trsfrDB.CopyData = true;
//Copy all stored procedure from source to destination
trsfrDB.CopyAllStoredProcedures = true;
//specify the destination server name
trsfrDB.DestinationServer = srv.Name;
trsfrDB.DestinationLoginSecure = false;
trsfrDB.DestinationLogin = "UserName";
trsfrDB.DestinationPassword = "Password";
trsfrDB.DestinationDatabase = "NewDBName";
trsfrDB.TransferData();

}
catch (System.Exception ex)
{
}
}

please tell me how can i fix this problem.Its so important for me.