SSIS Specified initialization vector (IV) does not match the block size for this algorithm or Change Password Protection Level.

Specified initialization vector (IV) does not match the block size for this algorithm.

SSIS deploying can be quite a hassle a weird message that I encountered recently was the popup above. It does not say anything. The solution for this issue is changing the target Sqlserver version in your project configuration to the Sqlserver version destination. If you then still have a problem deploying, then make sure that when you are deploying an Integration Services Project Deployment File (.ispac), that you are using the right version of ISDeploymentWizard.exe. You should always use the version of the destination Sqlserver. These problems are occurring when you have different versions running on your instance. You can find your Wizard in FYI: C:Program Files (x86)Microsoft SQL Server130DTSBinnISDeploymentWizard.exe