I have a SSIS package that was deployed successfully on a SQL Server cluster (2-node, active/passive config). This package was deployed to run as a scheduled SQL Server Agent job on the active node and it has run fine for several weeks. Recently, a configuration change was made that flipped the cluster configuration and this broke the job.
The package features a C# script task that handles an unzip task. This utilises the Microsoft J# redistributable and I used the code from one of the public SQL blog sites. When I run the package interactively in BIDS on the new active node, it runs fine. However, when I run the SQL Server Agent job, it fails with the following error message:
"...System.IO.FileNotFoundException: Could not load file or assembly 'vjslib, Version=188.8.131.52, Culture=neutral..."
I am guessing this is something to do with the SQL Server Agent proxy account but I'm not sure how to fix it. The proxy account in question is linked to a credential based on a domain account that has admin permissions on both servers in the cluster. When I ran the package successfully in BIDS on the active node server, I was logged in (to Windows) with this domain account (the SQL database connections in the package use the SQL sa account). I tried running the J# redistributable installer again and ran a repair, but this has made no difference.
Can anyone assist me please?
Thanks in advance.