I attended the conference last week in Boston and really enjoyed all I learned! But while trying to run through the Tracula tutorial with my own data, I am having an error with my configuration file: 

ERROR: must specify as many DWI dicoms as subjects. 

My files are in nifti format, could this possibly be the cause of this error? I have attached my configuration file for reference. 

FREESURFER_HOME: /Applications/freesurfer

Build stamp: freesurfer-Darwin-lion-stable-pub-v5.3.0

Kernel info: Darwin 14.5.0 x86_64

Thanks so much!

Jasmin