[phenixbb] how to convert .cif with multiple datasets

[Zheng Zhou]

Dear phenix experts:

I am using phenix.cif_as_mtz to convert a .cif file downloaded from
pdb, but when I run
################################################
phenix.cif_as_mtz   XXXX-sf.cif

Sorry: Crystal symmetry is not defined. Please use the --symmetry option.
################################################

Then I run
###############################################
phenix.cif_as_mtz XXXX-sf.cif --symmetry=XXXX.pdb
Multiple data sets found => ignored:  XXXX-sf.cif

What should I do? Thanks for your help.

Joe