Dear Phenix community,

I was wondering whether you experienced previously this problem. I'm running the 1.17.1-3600 version under ubuntu 16. when I do refinment and try to add ions an error message appear :

out = cStringIO.StringIO()

NameError: global name 'cStringIO' is not defined

CAUGHT EXCEPTION: (argument #559)

ARGUMENT LEADING TO EXCEPTION: 6099

Traceback (most recent cell last):

File "usr/local/phenix-1.17.1-3600/modules/cctbx_project/libtbx/easy_mp.py", line 181, in_call_result = 0.func(arg)