In attempting to create a new folder in Lightroom, when I hit create I lost every photo in LIghtroom. The folder that I created on my hard drive now contains Previews.lrdata, and lrcat. neither of which I can open. Can I recover my photos? I'm using LR 5 and an Imac OS 10.11.2.
Could you please let me know did you click on "+" in the Folder Panel.
Also did you try to double click on .lrcat to open the Catalog in Lightroom ?
It seems that you have created a new catalog instead of a folder. (you create folders in the Folders panel)
Go to File > Open recent, where you should find your original catalog.
What a relief! Thanks.