I have been running Lightroom on my iMac without troubles for the last two years. I have the latest version (Lightroom CC 2015, updated two days ago via Creative Cloud. After a power-failure where my Mac died, the only program that is giving me problems is Lightroom. I keep getting this message when trying to open LR:
Here is the error code.
I have tried starting my Mac (v. 10.11.6) in safe mode, I have tried starting Lightroom while holding down the shift/option key and chosing either "start normally" or "choose preferences", and all I get is the message shown above.
I am going out on a new job tomorrow and I desperately need Lightroom to do my work. Any suggestions would be greatly appreciated.
It sounds like either LR itself or your catalog file was corrupted when the system shut down unexpectedly from the power lose.
I think your first option is to remove LR from your system, you can uninstall from the CC desktop app, and then reinstall it.
Second option, if you actually get LR to start normally, is to un-zip the latest backup of the catalog file and open that.