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ckeditor.install needs updated to use the new ckfinder path choice. It still assumes that ckfinder is in the module folder.
CKFinder is not installed correctly: sites/all/modules/ckeditor/ckfinder/config.php not found. Make sure that you uploaded all files and did not accidentally remove the configuration file.
I was able to get the error to go away with the attached changes to ckeditor.install