Once you have ssis834 fixed, implement these DevOps practices to prevent recurrence:

Error Text: "The package version number is not valid. The version number cannot be greater than the current version number." Why: You saved an .dtsx file in Visual Studio 2019 (SSIS for SQL 2019) and tried to open it in Visual Studio 2015 (SSIS for SQL 2016). The Fix: You must change the TargetServerVersion property.

The Problem: Your development machine uses a 32-bit Excel, Access, or legacy OLE DB driver. Your SQL Server production server runs a 64-bit OS and SSIS runtime. When the package tries to run on the server, it calls the missing 32-bit driver, and the connection fails.

The Fix:

  • Change Package Property: In SSDT, click the background of the Control Flow (not a task). Look at the Properties pane. Set Run64BitRuntime = False during development, but when deploying to SQL Server, ensure the server has the 64-bit driver. Alternatively, set it to True to simulate server behavior.
  • Redeploy the package.

    • Verification: Right-click your project → Properties → Debugging → Set Run64BitRuntime = True. Run locally. If it fails now with SSIS-834, you've confirmed the driver mismatch is your issue.