Whilst perhaps of little use, the readme file with PP2014 includes this sentence:

"PoserPython scripts can make use of Tkinter to provide a GUI. Poser Pro 2014 ships with Tkinter 8.5. Scripts that were written for an earlier version of Tkinter might require adjustment. Please contact the author of your script for details. We are currently unable to support Tkinter 8.5 in 64-bit environments on the Mac."

I also see the quoted error message appears in the code (line 39) on my 64bit 2014Pro file in: "C:Program FilesSmith MicroPoser Pro 2014RuntimePythonLiblib-tkTkinter.py". But it's meaning is beyond my understanding.