Hi @rajesh kumar ,
For Integration Services projects in VS2109, you can install the appropriate extensions from within Visual Studio with Extensions > Manage Extensions or from the Marketplace.
If you have already installed that as well, please first try to uninstall it completely from Programs and Features, reboot the machine and reinstall the downloaded extension for a try.
download-sql-server-data-tools-ssdt
Regards,
Zoe
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