I have Lightroom 6, standalone on MAC 10.10.4. I was running 6.1 and received notice of update
to 6.1.1 and Camera Raw yesterday August 1. Performed Update and received error
that a "component" couldn't be installed. Tried to open Lightrom today and
received message that Catalog couldn't be opened.
I thought maybe the error I received, on upgrade corrupted the app. I reinstalled
version 6.0 and was able to open no problem.
I then selected check for updates and saw 6.1.1 and Camera Raw and clicked install.
Received Update Failed Updates Could not be applied. Clicked on Error Log and it reported
Retrieving data ...