Romcenter - Database extension not supported .rdt then quits

[Former user]

I cant seem to start romcenter any more.

I downloaded the portable version but when I start it I get the error "Database extension not supported .rdt"

So being portable version I deleted the directory but the problem is still there. Where is the settings file stored ?

[Diederik C. van Dijk]

Did you get this resolved? I have the same issue

[The Sandbox Channel]

Hello, I have come up with a temporary fix until they actually do something about this bug. However this will delete all your settings too but they will be regenerated when you open romcenter again.

If you are on windows go to C:\Users\User\AppData\Local\RomCenter and click through the folders until you get to the user config. delete the config.