I have Lightroom 4 and just subscribed to Lightroom CC. CC says it can not migrate a LR4 catalog. Is there a fix to this or will i have to start my catalog over?
The trick is to download the trial of Lightroom Classic, let it upgrade your LR4 catalog format to LRClassic format, and then LRCC can import it. Then you can simply remove the LR Classic trial.