Ssis-171 < 2024 >

| ✅ Preventive Action | How to Implement | |----------------------|-------------------| | Lock the Target Server Version | Add <TargetServerVersion>SQLServer2022</TargetServerVersion> to the .dtproj and check‑in the project file in source control. | | Enforce 64‑bit Development | In the Solution → Properties → Debug, set Run64BitRuntime = true and make it a team‑wide Visual Studio setting (via a .vsconfig file). | | Package‑Level Component Whitelisting | Create a PowerShell validation script that scans the .dtsx for any component whose classID is not in an approved list. Fail the CI build if it finds a rogue component. | | Automated Deployment of Third‑Party DLLs | Use a SQL Server Agent job or Octopus Deploy step that copies the required DLLs to DTS\Binn and runs gacutil /i. Keep the DLLs version‑controlled. | | Continuous Integration (CI) Validation | Add a MSBuild /t:Validate step in your build pipeline (SSDT 2022+ supports /t:Validate). Capture the output; any 171 will break the build. |

If you're executing a package that moves data from a source database to a destination database and you encounter the SSIS-171 error, you might: SSIS-171

| Property | Value | |----------|-------| | Error Number | 171 | | Message (SQL Server 2019+) | “The package failed validation. The package contains a component that is not supported on the target platform.” | | Typical Source | Data Flow → OLE DB Source / Destination, ADO.NET, Script Component, or any custom component that was built for a different SSIS version/bitness. | | Why It Happens | The runtime engine (DTExec / SSIS Catalog) cannot locate, load, or run the component because of one (or more) of the following mismatches:
1. Version mismatch – component compiled for SSIS 2008/2012 but running on SSIS 2019+.
2. Bitness mismatch – 32‑bit component on a 64‑bit run‑time (or vice‑versa).
3. Missing assembly – DLL not present in the GAC or in the C:\Program Files\Microsoft SQL Server\150\DTS\Binn folder.
4. Platform target – the package was saved as “SQL Server 2008” (or an older version) but is being executed on a newer server that enforces “TargetServerVersion”. | | Impact | Package validation fails before any data moves. The package never starts, and the SSIS Catalog logs the error with severity 16. | | ✅ Preventive Action | How to Implement