Sql server 2016 sp4 validating user
This guy had another, different problem with the same symptom (and this is where I got the info about the temp directory - a well known problem apparently).
A corrupt MSDB database caused the install to fail with the same issue - the actual problem was squirreled away in the install log file.
Once you get the hang of how to implement tasks in your control flow and configure your data flow, most efforts are fairly straightforward.
Even so, you can sometimes run into situations that slow down development or stop progress altogether.
Figure 2 shows the property set to False for an OLE DB Source component in the data flow.
Setting the Validate External Metadata property to False provides more granular control over your data flow than setting the Delay Validation property to True.
The second method you can use to override the default validation behavior is to set one of the two validation-related properties in your package.This can be particularly annoying if you have to reopen your packages often.You can also run into validation problems if you try to add a component that relies on a database object not yet created.For many SSIS developers, it's not uncommon to create multiple packages that contain many of the same components.Your packages might share variables, connection managers, event handlers, property settings, or tasks.