No se puede cargar el archivo o ensamblado 'Telerik.Web.UI, Version=2009.3.1314.20, Culture=neutral, PublicKeyToken=121fae78165ba3d4' ni una de sus dependencias. La definición del manifiesto del ensamblado no coincide con la referencia al ensamblado. (Excepción de HRESULT: 0x80131040)

Hi all
I have spent Alot time working with the edit radcotrol and I have followed the example in the documentation and I am have a hard time getting the radedit1.content to save
 there is the code

string sqlserver = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

string user_id;

protected void Page_Load(object sender, EventArgs e)

{

string userID = Context.User.Identity.Name;

lookupid(userID);

getbody(user_id);

}

public void getbody(string userID)

{

SqlConnection conmydata = new SqlConnection(sqlserver);

conmydata.Open();

SqlCommand cmdselect = new SqlCommand("select txtarea from txtbody where @userID=userID", conmydata);

cmdselect.Parameters.AddWithValue(

"@userID", userID);

string strbody = Convert.ToString(cmdselect.ExecuteScalar());

conmydata.Close();

RadEditor1.Content = strbody;

}

public void lookupid(string userID)

{

SqlConnection conmydata = new SqlConnection(sqlserver);

conmydata.Open();

SqlCommand cmdselect2 = new SqlCommand("select userID from users where @userID=email_address", conmydata);

cmdselect2.Parameters.AddWithValue(

"@userID", userID);

string stremail = Convert.ToString(cmdselect2.ExecuteScalar());

conmydata.Close();

user_id = stremail;

}

public void edit_finish(object sender, EventArgs e)

{

string body = RadEditor1.Content;

SqlConnection conmydata = new SqlConnection(sqlserver);

conmydata.Open();

SqlCommand insert = new SqlCommand("update txtbody set txtarea=@txtarea where userID=@userID", conmydata);

insert.Parameters.AddWithValue(

"@txtarea", body);

insert.Parameters.AddWithValue(

"userID", user_id);

insert.ExecuteNonQuery();

conmydata.Close();

}