Yes, there is a work around.
Ashley teach me this to go back from r81 to r80.2 (beacuse r81 fails in export).I think it will be fine for you too.
Save your project in a single file (.capx), open it with winrar or winzip and edit with notepad the .caproj file. Search the value 8200 and substitute it with 8002.
Then download r80.2 and istall it: now you can open back your project.