Strange errors in RoleTailored Client RDLC reports
We old dogs really have to learn new tricks with RTC (RoleTailored Client), as I found out couple of days ago. A customer of mine asked me for a quick report. I don’t typically do reports, but I thought—“not a big deal, it’s just a report”—so I fixed it, tested it, made sure it worked, then deployed it to production.
And then I found out it was not just a report.
It just didn’t want to execute in production. Whatever I did I just got a strange error message, something I never saw before. Ever.

Microsoft Dynamics NAV Classic client has some features which are simply unbeatable when it comes to productivity and speed, one of them being primary-key filtering. When you set a single-value filter on primary key fields in a table, and then insert a new record in the same table, primary key fields are automatically populated with values from the filter.