This morning I did some work in Scrivener on my laptop, and everything worked as normal.
This evening, when I went to try to open it, the icon in Finder has the crossed-out-circle forbidden sign over it, and the application refuses to open. I haven’t done any updates or other system activity today, and nothing else has changed in my setup. I tried restarting the machine, but still the same. It’s as if it thinks the version I have (2.6) is incompatible with the OS (10.9.5).
The only thing I can think of is that I upgraded my desktop iMac to Yosemite over the weekend - but I can’t see how that would affect whether my laptop can even open Scrivener, especially as it worked perfectly well this morning.
Addendum: When I try to open a .scriv file directly, Finder tells me: “You can’t open the application Scrivener because it may be damaged or incomplete.”
This is a relatively common problem. Automatic updating can sometimes damage the application. Notes on what to do are provided in a notice box at the top of our support page (basically: just reinstall from a fresh download).
I did the Yosemite upgrade and did not experience this issue, so I don’t think it is related. However, I have experienced the same symptoms before, even though I never new why it happened. Reinstalling Scrivener fixed it for me.