I'm Running Pro 2.8. Revit files received from an Architect were successfully added in Pro (v.2.6 or v2.7 just last year) are now unsupported in 2.8. Using the "Upgrade to latest version" tool on the Revit file gives me a "failed to upgrade to the latest version" notification in the upper right. Same results regardless of .rvt file location ( c:\ or network). Any suggestions?