Lightroom: "an error occurred when attempting to change modules."

I am a user of Lightroom (via the Cloud) first time (used Capture One before that) and just downloaded today. The first thing I saw was this error message

"An error occurred when attempting to change modules."

I've updated 4.3 and I tried all the other recommendations, I found here:

http://helpx.Adobe.com/Lightroom/KB/error-changing-modules-Lightroom.html

I don't know what are the products of Nik but I don't think I have.

I'm on a Mac 10.6.8

Deleted this file, preferably, I found here:

http://helpx.Adobe.com/Lightroom/KB/preference-file-locations-Lightroom-4.html

So frustrating! Please, can someone help me?

There was an old Installer bug which could be related.  If it works in own account, copy the files back may work.

Save your copies of the following files/folders from your user account and then copy backup versions of the proprietary.

Macintosh HD / users / [username] / Library / Application Support / Adobe / Lightroom /.

Macintosh HD / users / [username] / Library / Preferences / com.adobe.Lightroom4.plist

Tags: Photoshop Lightroom

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