Steps followed for Migration:
- Backup up of production database
- Create New Web Application on SP 2010 farm.
- Restore Production Database on SP 2010 Farm.
- Create Solution in SP 2010 with Name Space changed.
- Deploy new solution on the web application with migrated content database Up to this step everything is working fine
- Open a web part page from the library.
- Remove old web part
- Add new web part . .. Parse Error received
Can anyone help with this?