[phenixbb] mmCIF file must contain at least one data block

I am getting this thie error message mmCIF file must contain at least one data block when trying to run readyset or phenixrefine I cannot find anything wrong wqith my input files. What is the problem? Ursula -- Ursula Schulze-Gahmen, Ph.D. Project Scientist UC Berkeley, QB3 360 Stanley Hall #3220 Berkeley, CA 94720-3220 (510) 643 9491