[Freesurfer] error while running dt-recon all

Dear Freesurfer experts,

FREESURFER_HOME: /Applications/freesurfer

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

Kernel info: Darwin 14.5.0 x86_64

I received the following error while running the dt_recon --i 00010001 --s 40 --o /Users/jasminalves/Desktop/data/FREESURFER/40.

The participant is 40.

And I received the following error:

WARNING: file /Users/jasminalves/Desktop/data/40/00010001 does not contain a Siemens ASCII header has this file been anonymized?

ERROR: cannot unpack mosiacs without ASCII header

I did notice on previous threads this is a common error that occurs, but the files I have were directly exported from our siemens scanner via Osirix. I also tried running dt_recon using nifti format but that resulted in an error as well. Is there anything else I can do?

Thanks,

Jasmin