SSIS Package developed in SQL Server 2008 R2 Using BIDS 2008 is not working in SQL Server 2012

Question

I am working in a Product based company.
We have given a Pre-requisites to our customers like SQL Server version should be 2008 or later.
I have developed and deployed my SSIS package in SQL Server 2008 R2 with BIDS 2008.
I have used "Script Component" in my package.
We will take only DTSX package file to the customer places and run using SQL Agent Job daily. 
Who are all(Customer Environments) using SQL 2008 or R2 my package is running fine.
Who are all(Customer Environments) using SQL 2012, I am facing the below issue 
The component metadata for “Script Component, clsid {874F7595-FB5F-4OFF-9BAF-FBFF825OE3EF}” could not be upgraded to the newer version of the component. The PerformUpgrade method failed.
Still the same package is running fine for some of the customers having SQL 2012.
I am getting the above error only for few customers.
Can someone please guide me how to proceed on this. Is there any solution to go without upgrading the package to SQL 2012. Because we need to maintain only one package for all customers

Answer 1

Hi Katherine,
I am just using the script component only for generating Identity column purpose. I will get the maximum count from the table and using this count value as Input (JurisCount in my below code) for script component and increment the counter for new records.
Finally I am mapping the Script component output value (JurisKey in my below code) to Key column of the table. That's all I am doing with Script Component.
Here is my Simple .net code
/* Microsoft SQL Server Integration Services Script Component
*  Write scripts using Microsoft Visual C# 2008.
*  ScriptMain is the entry point class of the script.*/
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]
public class ScriptMain : UserComponent
    public override void PreExecute()
        base.PreExecute();
          Add your code here for preprocessing or remove if not needed
    public override void PostExecute()
        base.PostExecute();
          Add your code here for postprocessing or remove if not needed
          You can set read/write variables here, for example:
          Variables.MyIntVar = 100
    int counter = 0;
    public override void Input0_ProcessInputRow(Input0Buffer Row)
        if (counter == 0)
            counter = Convert.ToInt32(Row.JurisCount);
        Row.JurisKey = counter;
        counter = counter + 1;
PAVAN MSBI