I deleted the the file recommended by Matt:
Try closing the app, deleting the following directory to clear the app's saved data, and then restarting:
But the Problem seems rooted in the fact that the APP itself has disappeared from my Applications. I know it use to be there before. Can I download the APP again from Adobe?
Sadly, this doesn’t work for me. On a german installation of ID CS 6 with latest updates, I get the same error: "content viewer missing". I tried to start the content viewer.air installer from within Library/Application Suppoert/Adobe/Installers/AdobeDigitalPublishingCS6 and, after changing its permissions, seemed to succeed in it first. But the installer finished with an error message that translates like "This application cannot be installed due to a wrongly configured installation program. Please consult the app’s author." – which I do hereby. No sign of a content view inside Applications/Adobe …Any hints?
Thanks in advance
Did you check the permissions on the Applications/Adobe folder? In my case they were set incorrectly, so the installer installed initially but stopped with a similar error message when it was trying to move the application into this folder. Or for a workaround: Install into a different folder with correct write permissions and move the viewer into the Adobe folder afterwards, signing in with your admin rights when prompted for.
Europe, Middle East and Africa